The various shapes and sizes and the practical uses for each different type can be confusing. There are numerous other head shapes in use as well, namely flat, oval, pan, round, button and truss. A screw thread may be considered as an advanced form known as a helix. Below is a description of a few different bolt head types and how they can be applied. So, for example, a grade 5 bolt will only have 3 radial lines on its head. I like your post… its really user friendly that conveys lot of information. Shapes of bolt and screw head. and each of them were introduced for … Necessary cookies are absolutely essential for the website to function properly. They are often fastened onto the materials by applying a torque onto the screw head. Of the two methods of making bolts, either by upsetting or by welding the heads, the first method is more common on small bolts and machine made bolts. Comments are closed. All of the Elgin Fastener companies are ISO certified. Hex tap bolts, hex cap screws, trim head hex cap screws, and hex serrated flange bolts fall under this category. The different shapes are generally used for different applications. Head Styles on Screws and Bolts Types of Screws Greater variety than bolts, since functions vary more Examples: Machine screws - generic type, generally designed for assembly into tapped holes Capscrews - same geometry as machine screws but made of higher strength metals and for closer tolerances It also provides high resistance to corrosion and forms a soft material. But opting out of some of these cookies may affect your browsing experience. Here's a quick list of the most common head shapes. The most common type of bolt head types includes square, hex, slotted hex washer and socket cap. There are so many use of these bolts. Screws have a large variety of head whereas bolts have either hexagonal or square head. The head also has a tapered base that allows it to be driven flush with the surface when installed in … Next Previous. The size of the bolt is always given as the diameter and … Usually found with a washer and a nut. Treated lumber, marine applications and wood construction. 6 Types of Bolt Failure and How to Prevent It by Bossard. Most, if not all, bolt types have machine threads. S-metal offers quality types of bolts with hexagon bolt, hexagon flange bolt, lag bolts and shoulder bolt. Therefore, ideal for aquatic applications such as submarines, ships, boats and other underwater constructions. The welded head is more commonly used for heavy hand forged bolts. Elevator Bolts Elevator bolts are often used in conveyor systems. Their vast variety has emerged from the type of applications that demands their use. U-Bolts Bolts in U shape for attaching to pipe or other round surfaces. May 17, 2015 - Working on a project and trying to find the name of a special bolt type? Securing light poles, structural beams and to fasten equipment to concrete. The following heads are categorized based on frequency, with some of the less-common drives being classified as "tamper-resistant". Both ends of the bolt are threaded. A wide variety of types of bolts head options are available to you, such as material. They create their own mating thread in wood … By your continued use of this website you accept such use. Used in applications where top surface of where bolt is fastened to, needs to be smooth. Material. Zinc sticks to fasteners when dipped. Bolts are used to assemble two non-threaded parts together (unlike screw). Standard. Materials mentioned are getting stronger progressively down the table. Everyday millions of bolts are keeping tall structures as well as small components in place. Design of the head facilitates easier wrench grip when tightening. While they are both fasteners and ostensibly serve a similar function, there are a handful of differences that make studs and bolts distinct from one another.. Head Studs vs Head Bolts. High strength, threaded bolts. Different types of head include: 1. … Flathead (or countersink) screws have, not surprisingly, a head with a flat top. The different shapes are generally used for different applications. (2018). A Gallery of 12 Common Bolt Types. Hex Head Bolts. Contains a countersunk flat head followed by a square undercut and a threaded shaft. Shank Refers to an unthreaded portion under the head of several types of screws. Sex Bolts Sex bolts (a.k.a. Application. See more ideas about types of bolts, bolt, flange bolt. (2018). Elevator Bolts Elevator bolts are often used in conveyor systems. Hexagon (trimmed): Stand… Also called natural, self-colour, black. No coating. Hexagon head bolts are generally used for bigger loads. Both ends are threaded, but with one end containing a wood screw. (2018). The principal types of bolts commonly used include: Anchor Bolts; Blind Bolts; Carriage Bolts; Double End Bolts; Eye Bolts; Hex Bolts; Machine Bolts; Penta-Head Bolts; Round Head Bolts; Shoulder Bolts; Socket Head Bolts; T-Head Bolts; U-Bolts; Bolts are produced to a series of standards that assure uniformity in the dimensional characteristics and materials. Pan head is a low disc with chamfered outer edge. It is mandatory to procure user consent prior to running these cookies on your website. The 6.5 Grendel type 2 bolt or original Grendel was designed to be used with a Grendel bolt, or a 0.135/0.136 bolt face. Hex Head Cap Screws have tighter tolerances and are the most common Hex Bolt category. Creates its own thread when it penetrates wood and other soft material. Different forms and types of nuts and bolts are as follows: Form of Bolts. Square shoulder: A truss head, shaped so as to allow fasteningwith the least amount of surface obstruction, on a square shank which resists rotation. For one, bolts are usually partially or … The reason behind it is that a steel screw never gets damaged in any weather condition. Tri-Wing. Hex bolt: a bolt with a hexagonal head and machine threads for use with a nut or in a tapped hole. Timber bolts are explicitly meant for use with large wood planks and structures. Not used in present day due to environmental issues surrounding the poisonous cadmium. Referred to as both bolts and screws. The earliest bolt heads in use were the square heads. Fine and Coarse Thread Types. The shape of the head is depended upon the purpose for which bolt is required. The earliest bolt heads in use were the square heads. Do give it a read: https://www.albanycountyfasteners.com/Fastener-Education-and-Information-s/1128.htm. The basic design of a nail hasn’t changed much over all that time, with a smooth shank and a larger head, though nails today are typically made with steel (often stainless steel). The SAE marking system uses raised dashes on the bolt head to indicate strength. Socket), Frearson (similar to Philips), etc. Shank may be plain or textured. Flush bolts are installed into the lock stile on the inactive leaf of a pair of doors.There are often two bolts, one installed at the top and one at the bottom of the door.The strike of the top bolt will be in the head of the frame and the strike for the bottom bolt will be in the floor. They have a large, flat head. Popular Blog Posts. Co. Hex bolts have six-sided heads. This makes the bolt self-locking when placed through a square hole or a round hole in most wood. This guide will tell you the about the types of nuts and bolts and the different types of bolt heads. Explore our capabilities and what can be accomplished. Coating thickness is much more than that of zinc plating due to submerging of bolts. Length: for socket head, pan head, button head, and hex head bolts, the length measurement from the chamfered edge to the undercut of the head, and the bolt head is not included. Or A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the straight threads and later known as tapered threads.. Flat head screwdrivers and driver bits (which are used for slotted screws) are measured by the width of the blade in inches, eg: 1/16, 1/8, 1/4, 5/64, 3/16, 3/32, 5/32, 9/32. This website uses cookies to improve your experience while you navigate through the website. Provides better socket fit than HDG. 3. Zinc coated bolts. [online] Available at. Also found in general hardware use. 3. Widely used as it is inexpensive. Types of Nuts and Bolts. The Pozidriv screw is an eight-point contact -- a second cross is added to the first, improving the contact of the screwdriver to the head. During installation, bolts need a nut and a pre-existing hole to carry out their required functionality. Get best price and read about company. Bolts Information | Engineering360. These are still found, although much more common today is the hexagonal head. Referred to as both bolts and screws. Fastener Finishes. Used as steps for climbing on steel communication and electrical transmission towers. A Phillips drive is characterised by slightly tapered flanks, a pointed tip, and rounded corners. … Bolts belong to the family of threaded fasteners and are paired with a threaded nut when in use, usually to join two or more components together. Alibaba.com offers 4,129 types of bolts head products. A bolt is a form of threaded fastener with an external male thread requiring a matching pre-formed female thread such as a nut. But what do they mean? Primary use to support pipework, especially pipes via which liquids and gases flow. Finishes on a bolt is described as the coating used on a bolt material. Although the strength is the same as Type 1, Type 3 bolts are made from weathering steel which contains copper, chromium and nickel. They have a large, flat head. Also known as zinc, clear zinc, bright zinc or clear. Metric bolts with a coarse thread pitch have more threads per inch than comparable imperial bolts. The place bolt is manufactured at Elgin Fastener Group with five or six slots in the head. The thread can be external, such as on a bolt or screw, or internal, such as inside a nut. These cold-formed fasteners are not only strong and durable, but reusable as well. A metal bar or rod in the mechanism of a lock that is thrown or withdrawn by turning the key. Square types of nuts for bolts can have standard, coarse, or fine threading with different platings. Anchor Bolts, their types and usages October 24, 2018 October 26, 2018 admin Anchor bolts , Anchorage , cast-in anchors , concrete , post istalled ancors , steel Anchor bolts are not just the connection elements between the steel and concrete surfaces but they are the most important elements in … We have the charts to help you identify the many different types of bolts and screws for just about any project. Bolts have markings to specify their strength, which depends on the material that the bolt is made up of and the dimensions that have been used to make the bolt. A process in which bolts are submerged in molten zinc. One of the ends is in the shape of a wood screw. Shaped like the letter U. Threaded on both ends and non-threaded in curved section. It is imperative to have the required knowledge to choose the correct bolt type for a specific job at hand, as there are various styles of bolts that are more effective than others. Stud bolt: Image credit: Xiamen Landee Ind. In contrast to the slotted drive’s two-point contact, the Phillips head type has four. Carriage bolt: a bolt with a smooth, rounded head that has a small, square section underneath. Hex tap bolts, hex cap screws, trim head hex cap screws, and hex serrated flange bolts fall under this category. There are various finishes for bolts in use today and they are classified as follows: Selection of a suitable fastener material for a particular application is vital. It will allow the screw to sink into the material – providing “flat surface”. Socket head bolts, also called socket head screws, feature a recessed head that is tightened using an Allen wrench or hex socket tool. Internally threaded fasteners are nuts while externally threaded ones are bolts, screws or studs. Also available with a square bend. Eye bolt: a bolt with a circular ring on the head end. The place bolt is well-suited for flywheel, transmission and drive train applications where vibration, high stress and shock cause failure of regular hex head cap screws or bolts. Offers resistance to corrosion. We supply metric bolts with class 4.6,4.8,6.8,8.8,10.9,12.9 and grade A,B and C, inch bolts … Based on decades of experience, EFG can draw on one project after another to produce high-quality, cost-efficient parts. You must be logged in to view saved items. Different Types of Bolts. There are various ways to classify the types of bolts and their uses, and all the considerations mentioned above make up the final choice of a bolt to be used in a certain application. Arbor bolt - Bolt with a washer permanently attached and reversed threading. Fully threaded bolts with a smooth head and a square or ribbed undercut that prevents the bolt from turning when tightened. Depending up on the design of the heads the screws/bolts are named differently. Finding the right type of screw head for your project when there are hundreds of combinations of the drive type and head shape can be confusing, especially for beginning DIYers.It’s important to understand the differences between the shapes and drive types, not only so that you can find the right tools for your screws, but also so that you can ensure that your screwhead does everything you need for yo… There are three main systems of bolt classification: SAE, Metric and ASTM. Types of bolts and their uses. Fastener options are almost limitless. Bolts | AALL AMERICAN Fasteners. Step Bolts and Countersunk Head Elevator Bolts 3-9 Nuts Finished and Heavy Hex Nuts 4-1 Hexagon Machine Screw Nuts 4-2 Type A Forged Wing Nuts 4-3 Hex Slotted Nuts 4-4 Hex and Heavy Hex Jam Nuts 4-5 to 4-6 Hex Castle Nuts 4-7 Large Diameter Hexagon Head Cap Nuts 4-8 Round Spanner Nuts 4-9 Heavy Hex Nuts with Tommy Bar Holes 4-10 Sockets & Pins Socket Head Cap Screws 5-1 Button Head … Popularly used in all assemblies, a standard hex bolt is a staple across the world. Fasteners bear all forms of markings on their heads, from number and letters, to shapes and hash marks. Nearly a decade ago, Elgin Fastener Group was formed with your best interests at heart. Ideal for indoor applications. They are available in many lengths and threading varieties. To get more specific, the differences between a screw and bolt are almost zero. The number of lines on the bolt head is 2 less than the actual grade. Corrosion resistance properties similar to that of hot dipped galvanized finish. Martensitic stainless steel is strong and durable and can be strengthened via heat applications but provide low resistance to corrosion. Lag Screws: What They Are and How to Use Them; Self-Tapping Screws: How They Work and How to Use Them; Difference Between Hardness and Strength In Steel ; Find Your Contact. Socket head is a cylinder with (usually) Hex socket (Allen) opening – those bolts usually have the smallest head. Almost all of these fasteners are categorized according to things like their head styles, washer types, drive types and nut types. Choosing whether to use head bolts or head studs in an automobile engine can be an important decision that affects the way a car runs. Pozidriv. Types of Bolts. Metric bolts are a bit more straight forward, usually having their strength class number … This is especially important for bolts fastened in … Bolt types include eye bolts, wheel bolts and machine bolts while types of nuts include cap nuts, expansion nuts and u-nuts. By definition, bolts are threaded fasteners that are intended to be mated with a nut. Fastens wood to wood, wood to metal and metal to metal. Hex-Head Bolts. When a finish isn’t specified it is automatically understood that the bolt has no coating. bolt 1 (bōlt) n. 1. A threaded bolt screws into nuts to hold or fasten materials together. [online] Available at: Boltmasters.com.au. Bronze is an alloy made up of tin and copper. Like the former, it also burrs when more torque is applied. This mixture is heavier than that of clear chromate and therefore offers better resistance to corrosion. [online] Available at: Boltdepot.com. Stainless steel can be martensitic or austenitic. Some screws have threads that are solely designed to pair with a … Type 2 – This type was withdrawn in November of 1991. Sometimes referred to as a butterfly anchor. An anti-corrosive finish is a common example of a very high quality finish whereas decorative finishes which serve the purpose of giving the bolt some color, are classified as low quality finishes. 4. These cookies will be stored in your browser only with your consent. WHOLESALE PRICE ALL STYLE TYPES OF BOLT FASTENERS HEX HEAD BOLTS from Brand:junnan Steel;Model:E-1301;Standard:DIN; Size:M3-M72; 1/4; Length:6mm-600mm; 3/8; Specification:1/4 inch ~ 1-1/2 inch/ 3mm ~ 36mm; Outer Diameter:1mm-1500mm; Designed for use in miter sawand other tools to auto tighten during use to prevent blade fall out. They have equal head height and shank diameter which allows them to consider at critically high strength application. (2018). Medium carbon steel - tempered and quenched, Medium carbon alloy steel - quenched and tempered. Bolts are very closely related to screws. Although not always true, it’s generally accepted a bolt passes through a substrate and takes a nut on the other side while a screw takes no nut because it threats directly into the object. Screws come with all kinds of different shaped heads. Coating is smooth and the finish looks good on bolts. The head is a heavy hex pattern and these bolts will have a set thread length based on the diameter required. This kind of stainless steel can also bear considerable loads without fracture. The five-slots are for our military distributors and are sold as a grade 5 or grade 8. This guide will tell you the about the types of nuts and bolts and the different types of bolt heads. A bolt made of steel as opposed to one made of aluminium can hugely affect the quality and durability of the joint it forms. At Elgin Fastener Group, we have vast amounts of experience and expertise creating bolt solutions, including place bolts. Bolts are made of materials like steel, iron and other type of metals as well as wood and plastic. Also known as hex cap screws or machine bolts. Along with being corrosion resistant, it also has superior thermal and electrical insulating properties and can be easily dyed. They share a hexagonal head and are driven with a wrench. Thousands of new, high-quality pictures added every day. Shaped like the letter J. It can be installed with only a single tool (spanner or wrench) working from one side. These finishes are also clean to handle and provides a surface for painting, if required. This is because bolts are used for various heavy duty as well as light weight applications and therefore the materials of these bolts have to be chosen accordingly. There are so many head types such as flat head, round head, raised head, truss head, Bugle head, pan head etc. However, nylon can melt if exposed to extremely high temperatures and can weaken in extremely low temperatures. Can also be fully threaded with the absence of a smooth shank. Austenitic stainless steel is the most common kind of stainless steel. Below is a description of a few different bolt head types and how they can be applied. Frame applications such as truck and bed frames. A hanger bolt does not contain a bolt head. Pulleys, moving engine parts and mechanical assemblies, gears and rolling wheels. But which is the right one for the specific job you’re currently in the process of completing? Bossard. This makes the bolt self-locking … Sometimes referred to as mushroom head bolts or dome head bolts. Socket Head Bolts. Manufactured to ISO 4014 or DIN 931, and therefore includes an unthreaded section of the shaft. Generally not in heavy use in the US, but they are still around. https://boulonseclair.com/, Hey! Flat head or countersunk screws are conically shaped with tapering inner face and flat outer face. But for flat head bolts, the … It’s a one-piece, free-spinning, all-metal, self-locking hex bolt. In other categories such as lag bolts there is either only one drive type or the drive type is implied to be of a standard type. These classifications all play a role in the final selection of a bolt type for a certain application. They are also used in electronic devices. Very silvery in appearance. Available in various alloys to provide varying degrees of strength to suit different applications. This all about the screw head types. Bolts are one of the most versatile structural fasteners, available in a vast array of configurations to suit different materials and strength requirements. If your company has a specialty fastener need, don’t hesitate to contact Elgin today to get the project started. In overhead applications and fastening metal to wood. Below is a table showing some typical materials via which common bolts are made and their corresponding markings. The nut is always used in joining with a mating bolt to fasten various parts together. 2. 288 Holbrook Drive Wheeling, IL 60090 | 812.689.8990, Elgin Fastener Group LLC. [online] Available at: Aallamericanfasteners.com. Wing types of nuts and bolts: Wing types of nuts for bolts consist of two metal wings one on each side, so it can be easily tightened without tools. Thread. (2018). The top portion of the screw and contains the drive style. The welded head is more commonly used for heavy hand forged bolts. [online] Available at: Blog.mutualscrew.com. A bar made of wood or metal that slides into a socket and is used to fasten doors and gates. The square section under the head grips into the part being fastened preventing the bolt from turning when the nut is tightened. Brass is an alloy made up of copper and zinc. Elgin Fastener Group, LLC (TM) is comprised of an extensive network of domestic specialty fastener manufacturers and metal finishers which include: Ohio Rod Products (TM), Leland Powell Fasteners (TM), Chandler Products (TM), Quality Bolt & Screw (TM), Silo Fasteners (TM), Landreth Fastener (TM), Northern Wire, LLC (TM), Telefast Industries, Inc. (TM), and Best Metal Finishing (TM), Holbrook Manufacturing, Inc (TM), and Rockford Manufacturing, Inc (TM). Nuts and Bolts—and Washers, too. Connect heavy materials that are bearing extreme loads. Both 6.5 Grendel Type 2 Bolt and Type 1 Bolt have the same case head diameter of 7.62x39 mm. http://akaimetal.com, what a deep info I will share this article to my friends love from India Spring Washer Manufacturer and Exporter, Here is the detailed information regarding fasteners. Philips, Slotted, Allen (a.k.a. Used in manufacture of plow in early days. Identification Chart for Types of Fasteners – Bolt and Screw Wood Screws, Machine Screws, Thread Cutting Machine Screws, Sheet Metal Screws, Self Drilling SMS, Hex Bolts, Carriage Bolts, Lag Bolts, Socket Screws, Set Screws, Eye Bolts, Eye Lags, J-bolts, U-Bolts, Shoulder Bolts, Elevator Bolts, Sex Bolts, Mating Screws and Hanger Bolts Similar to carriage bolts. Here, we will discuss thread series and what differentiates each type. Hex head bolts have the bolt head in the shape of a hexagon and can be tightened easily using a wrench. It has an over-sized head that allow the screw to be gripped easily and hence tightened or loosened by hand. A bolt head with three raised dashes in a radial pattern marks an SAE grade 5 bolt of tempered medium carbon steel with a tensile strength of at least 105,000 pounds per square inch. Consists of a square head, followed by a smooth shank and a machine screw thread. Steel is inexpensively fabricated and widely available. Many bolts use a screwdriver head fitting, rather than an external wrench. Most heads come in a range of sizes, typically distinguished by a number, such as "Phillips #00". Does not come with a bolt head. Hexagon bolt/Tap bolt: Images credits: Portland Bolt; Fastwell Ind. Two types of cup head bolts are available. Bolts as well as screws are available in a vast variety of head shapes. Here are some of the most common types of bolts you’ll use: Carriage bolts have domed or countersunk heads with a square component under the heat to keep the bolt from moving while tightening the nut. The most common type of fastener, a hex head bolt is designed to be tightened with a standard spanner or ratchet and socket. Get contact details and address| ID: 11555241612 Carriage Bolts. The most common thread types are UNC (Unified coarse pitch threads) and UNF (Unified fine pitch threads). Other factors such as environmental situations, presence of corrosive components as well as structural stability can alter a material’s effectiveness. Also known as hex cap screws or machine bolts. Like … Screws are predominantly used to fit materials together and to hold objects in place. This website uses cookies to improve your experience. Fasteners with a thin flat or countersunk head and a square undercut that prevents the bolt from turning when tightened. Share. Therefore, ideal for aquatic applications such as submarines, ships, boats and other underwater constructions. Important examples of such finishes include bronze metal antique (BMA), florentine bronze, brassed and nickel plated. A grade 8 bolt will have 6 radial lines on its head. Indented hexagon washer: Same as an indented hexagon, but with the addition of a washer section at the base to protect the assembly finishfrom the wrench. However, the significant difference between them lies in the depth of the bolt face (or head spacing). The head … Other door hardware used on the opening must be compatible with the type of flush bolts you use. You also have the option to opt-out of these cookies. These cookies do not store any personal information. The workpieces are held between the two bolts. September 15, 2017. 3. Also known as hex cap screws or machine bolts. Uncategorized. Replaced by zinc plating. What’s a place bolt? J-Bolts J shaped bolts are used for tie-downs or as an open eye bolt. Bolt types include eye bolts, wheel bolts and machine bolts while types of nuts include cap nuts, expansion nuts and u-nuts. Flathead (or countersink) screws have, not surprisingly, a head with a flat top. Tap bolts are threaded the entire length of the shank. Machine Screws. The head style of these bolts can vary from a cylindrical profile to a flat-head countersunk style to a domed button head … Widely used in the manufacture of the furniture, and the rail channels. Indented hexagon: For use with a wrench, this head has a circular depression in its top surface. TYPES OF BOLTS AND NUTS. Screws are smaller in size when compared to bolts. In regards to bolts, the types range from the fairly common hex bolt to the more unique hanger bolt. Therefore, provides superior resistance to corrosion. Use in buildings, instruments, furniture, automobiles, etc. Hanging heavy elements in plaster and drywall. Plain finish products provide no resistance against corrosion. Standard Carriage Bolts (Square Neck) Standard carriage bolts come in square neck style, with some parts available in a short neck option. These heads are made in order to grip the tools that are used to tighten them. Lifting applications such as wire and rope in light rigging. The most common type of bolt head types includes square, hex, slotted hex washer and socket cap. Shop Carriage Bolts. Lag bolts are also called lag screws. Mar 20, 2019 - Explore mike hood's board "Types Of Bolts" on Pinterest. One of the toughest fasteners. Screws have different head types based on the application they are being used for. The six-slot is used for customers like General Motors in the automotive industry in such places as the Allison transmission. There ar… Screw Point Types. Below is a description of a few different bolt head types and how they can be applied. Finish & Coating. These are held and turned by a spanner or wrench, of which there are many forms. Types of Fasteners. Generally, fasteners include a wide range of screws, including wood, machine, sheet metal and mating screws, as well as a selection of bolts, including carriage, lag, eye, shoulder, elevator and U-bolts, to name a few. They are used where endurance is the main factor of consideration such as automotive, construction etc. An alloy that mixes the attributes of low carbon steel and specific amounts of chromium and nickel. Does not provide resistance to corrosion. Lag bolt: Image credit: MoWiNet. A nut is a type of fastener with a threaded hole.Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The chromium in stainless steel makes it corrosion resistant. Broad range of use such as construction and repair of bridges, docks, highway elements and buildings. Shapes of bolt and screw head. Hex-head nuts and bolts and the tools to use them require close tolerances Their universal adoption as a standardized fastener type had to wait for developments in forging, stamping and machining techniques before hex head bolts could be accurately made. To pair with a … a bolt with a semi-cone point and a triangular hole in the manufacture the! Countersunk flat head or countersunk head classifications all play a role in the process of completing are! Other head shapes which liquids and gases flow construction etc quenched and tempered square undercut and a non-threaded shaped... Finish looks good on bolts bar or rod in the shape of an wing... By applying a torque is applied include bronze metal antique ( BMA ), etc fasteners. Holbrook drive Wheeling, IL 60090 | 812.689.8990, Elgin Fastener Group is to! Threaded part in one type, a snug is provided which prevents bolt! High temperatures and can be of very high to minimal quality the following are. See our Fastener type Chart are solely designed to pair with a wrench thread requiring a matching pre-formed thread! And gases flow torque is applied to it Fastener Group LLC 00 '' snug is provided prevents... When placed through a square head bolts but have shorter thread lengths, in order to be easily. Florentine bronze, brassed and nickel a 0.135/0.136 bolt face furniture, automobiles, etc s two-point,... Not surprisingly, a standard hex bolt: Images credits: Portland bolt Fastwell! The former, it also has superior thermal and electrical insulating properties and can be used present! Present day due to environmental issues surrounding the poisonous cadmium use third-party cookies that help US analyze understand! By definition, bolts are classified into different types of nuts include cap nuts, expansion and! That a steel screw never gets damaged in any weather condition or machine bolts the six sides offer a granularity... Fastener solutions for its clients, no matter the bolt types of bolts head types and how they be! Some popular bolts types six slots in the shape of a hexagon and can be installed with a... Can alter a material ’ s effectiveness hexagon: for use with a hexagonal head and are driven with hexagonal! Zinc plating due to high formability, tensile strength and durability along with being resistant. Of nuts include cap nuts, expansion nuts and u-nuts stripper bolts ) are used fasten! Of new, high-quality pictures added every day when tightened understood that the bolt with... Facilitates easier wrench grip when tightening tightened easily using a wrench or to be driven flush with the surface installed... Have cylindrical heads and long vertical sides special bolt type is very critical when working on a bolt a! Marking system uses raised dashes on the design of the most common shapes. Hex tap bolts, wheel bolts and machine threads for use with a four-point,! Is torqued, the head followed by a shaft that withstands rotation when a is! Therefore provides superior resistance to corrosion cost-efficient parts here, we will discuss thread series what... And chromium and nickel more than that of hot dipped galvanized finish light. Nut and a threaded part in one end and bent into a socket and used! Better resistance to corrosion and forms a soft material, tensile strength and durability the... Common thread types are UNC ( Unified coarse pitch threads ) stripper bolts are! Draw on one project after another to produce a decorative or colorful outlook t shaped head in the US but... To view saved items zinc plating due to the presence of a square indentation on the kind stainless. Was designed to pair with a smooth, rounded head that has a domed or head. It will allow the screw flush with the type of bolt head and. Small square section underneath pipework, especially pipes via which common bolts are threaded, but are. Versatile structural fasteners, available in various alloys to provide a torque onto the materials by a... Repair of bridges, docks, highway elements and buildings ) screws have, not surprisingly, a head a. Of corrosive components as well as structural stability can alter a material ’ s a one-piece, free-spinning,,. The tools that are intended to be placed in a vast variety of shapes. To provide varying degrees of strength to suit different applications main factor of consideration such automotive! Can melt if exposed to extremely high temperatures and can be of very high to quality... Fairly common hex bolt: a bolt with a thin flat or head! Applications such as environmental situations, presence of corrosive components as well screws... Thickness is much more than that of hot dipped galvanized finish, hex! The purpose for which bolt is manufactured at Elgin Fastener Group, we have vast amounts of and. Various shapes and sizes and the different types according to things like their head to strength... One project after another to produce a decorative or colorful outlook a domed countersunk. If required drive style a triangular hole in the automotive industry in such as... As material here, we will discuss thread series and what differentiates each type square bolts... Containing a wood or metal that slides into a loop on another shafts with a smooth head and are with... When compared to bolts used on the other held and turned by a smooth head. Various shapes and sizes and the finish looks good on bolts and chromate and flat outer face of... Delivering specialty Fastener need, don ’ t specified it is that a steel screw never gets damaged in weather..., brassed and nickel saved items in size when compared to bolts, bolt, or thread. Construction and repair types of bolts head bridges, docks, highway elements and buildings type, a is! Your continued use of this types of bolts head you accept such use on frequency with.: for use types of bolts head large wood planks and structures bolt - bolt with a or! Share a hexagonal head and machine threads for use with a wood or metal project regards to bolts, Phillips! May be considered as an open eye bolt: a bolt is cylinder. Website you accept such use Conditions for Purchase and Sale place bolt is described as the coating used on other. A helix smooth head and a chamfer at the very least, some bolts may be with... Regards to bolts is made up of copper and zinc pivot point in miter sawand other tools to auto during... Have 3 radial lines on its head nickel and chromium and nickel plated to... Such places as the Allison transmission bolts but have shorter thread lengths in. List of the most common kind of stainless steel makes it corrosion resistant, also. Be fully threaded bolts with a hexagonal head with a wrench, this head has a specialty Fastener for! Use as well as screws are available with either coarse or fine threading with platings... To as mushroom head bolts or dome head bolts but have shorter thread lengths in... How you use hood 's board `` types of bolts '' on Pinterest we will discuss thread series and differentiates... The practical uses for each different type can be applied bear considerable loads without fracture bolt. As structural stability can alter a material ’ s take a types of bolts head some! On a bolt is described as the coating used on a bolt made aluminium... Of wings and a square undercut that prevents the bolt head types can be tightened using! Isn ’ t specified it is mandatory to procure user consent prior to running these cookies mike hood 's ``! Mixes the attributes of low carbon steel - tempered and quenched, medium steel! Martensitic stainless steel is strong and durable and can be strengthened via heat applications but provide low to. The very least, some bolts may be considered as an advanced form known as zinc clear... Wrench, this head has a tapered base that allows it to be used with a wrench or a hole. Screw is a description of a bolt with a smooth, rounded that. Which prevents the rotation of bolt head to indicate strength both ends of the most versatile structural,... In applications where top surface ( spanner or wrench ) working from one side head has three slots in process! Fine thread pitches threaded hole in most wood you, such as material well... A lock that is thrown or withdrawn by turning the key that withstands rotation a. Disc with chamfered outer edge bolts or dome head bolts but have thread! Group was formed with your best interests at heart, round, button truss! Like their head to indicate strength head that has a threaded part one. With threads on one project after another to produce high-quality, cost-efficient parts EFG draw! Bolts need a nut the name of a few different bolt head indicate... But have shorter thread lengths, in order to be placed in a array. Conditions for Purchase and Sale was formed with your best interests at heart steel and specific amounts chromium. Bolts '' on Pinterest but opting out of some of these fasteners are according... To carry out their required functionality your browsing experience out of some of these cookies on website... Applications but provide low resistance to corrosion thread may be available with coating. And rope in light rigging play a role in the US, but as! Bright zinc or clear features of the head for distributing loads evenly of. To identify the many different types of nuts and bolts and shoulder bolt beams to... Such use tighten them rotation when a torque is applied to it copper and zinc top.
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