Many items are available in a wide variety of finishes, grades, and features. Accepts machine screws and bolts and provides a lowprofile phillips or allen socket truss head. Jul 07, 2015 different types of bolts are available online, so as to fit into various industry requirements. We have expertise not only in standard products, but also in. Heavy hex bolts 34 heavy hex structural bolts 35 highstrength structural bolting 36 carriage bolts and lag bolts 37 square bolts 38 step bolts and countersunk head elevator bolts 39 nuts finished and heavy hex nuts 41 hexagon machine screw nuts 42 type a forged wing nuts 43 hex slotted nuts 44. Sep 30, 2016 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, jbolts, ubolts, shoulder bolts, elevator bolts, sex bolts, mating screws and hanger bolts. Carriage boltsarriage bolts have a domed or flat head with a square. Allen or socket drive, hex head drive, torx drive and square drives. Anchor bolts bolt types standard bolt size hex bolts. From that point to the tip is the length of the screw.
Fasteners bolts, nuts and threaded rods torque, tension and loads. This chart illustrates the different types of metal socket screw types used in the industry. Machine screws with no head for screwing all the way into threaded holes. Lag bolts, or lag screws, are large wood screws with hex heads. Not that the guys at the hardware store dont need a chuckle every now and them. Cheat guide chart bolts, screws, washers, nuts, drive charts working on a project and trying to find the name of a special bolt type. Fasteners bolts, screws, studs and nuts symbols and descriptions of dimensions. At one time or another, all of us even the pros misidentify a fastener. The intent of this manual is to present enough data on bolt and rivet materials. Socket screw types pdf printable chart this chart illustrates the different types of metal socket screw types used in the industry. Metric fastener thread series m is the common thread profile.
A machine screw is a screw or bolt with a flat point. What are the different types of screws available in the market. Wrench openings for square and hex bolts and screws. Hanger bolts hanger bolts have wood thread on one end and machine thread on the other end rivets used to join sheets of metal. Recommended for new designs to replace round, truss and binding heads. Oct 26, 2016 flange bolts are machine thread for use with a nut and are also known as frame bolts. The broadest categories are wood screws, sheet metal screws, drywall screws, deck screws, and lag screws. A bolt is a form of threaded fastener with an external male thread. Comdox 500pcs alloy steel socket cap screws hex head bolt nuts. Following are the most commonly used types of bolts, used in various applications and sectors. Nuts, bolts and fasteners nuts, bolts and fasteners. Stephanie angel, brian appert, stanis batton, carol beasley, chris blackburn, larry blumberg, vera harrisbourne, brenda.
The deeper neckline and cups create lift, which helps fill in the shallower. Socket screws eye bolts eye lags u bolts socket screws, also known as allen head, are fastened with a hex allen wrench. Unified finethread series unf or unrf use when more threads per inch are required i. Certain types are sometimes referred to as stove bolts. Type 2 astm a325 heavy hex structural bolts this type was withdrawn in november of 1991. Hex and hex washer head screws and bolts, although flat on the top and the bottom, are measured from the bottom of the head. Standards for dimensions and tolerances are issued by the american.
These types of fasteners are used in fastening lumber and are tightened and loosened by applying torque to the head of the bolt. Fasteners bolts, screws, studs and nuts symbols and designations of dimensions. The nuts and bolts of marine fasteners west marine. Hex nuts with a series of slots cut into one side to allow cotter pins or wire to lock the nut in place and prevent it from turning. Brazed seam copper lugs are a great choice for certain applications. Threads per inch 307a astm a307 grade a sae j429 grade 5 sae j429 grade 8 f n l g 9 fnl grade 9 clamp load lbs. For standard size bolts where the head usually sits above the surface, the measurement is from directly under the. Type 3 astm a325 heavy hex structural bolts weathering steel, quenched and tempered. Free bolt size charts screw charts nut size charts all charts are downloadable and printable pdf formats great online mechanics tools for metric and us.
Thread series mj designates the external thread has an increased. Bolts are measured in many different types of parameters. Two of the most common types of headed bolts are hex head and round head. Allen bolt definition is a bolt with a hexagonal socket in its head that is designed to be used with an allen wrench. The starting point for their length is at the widest point of the head. Prevailing torque type steel hex and hex flange nuts. Metal socket screw type chart free technical charts. Cheat guide chart bolts, screws, washers, nuts, drive. The bolt is one which has external thread and which get tightened by holding its head fixed and applying torque to the nut. Bolts and nuts, hex cap screws and fasteners online. They share a hexagonal head and are driven with a wrench.
The grabcad library offers millions of free cad designs, cad files, and 3d models. 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. The term socket head cap screw typically refers to a type of threaded fastener. From allen, the name of allen manufacturing company, and bolt. Wheelchair axles, bolts, and nuts may seem like a frustrating parts to find. A hex key, allen wrench or allen key, is a simple tool used to drive bolts and screws with hexagonal sockets in their heads the tool is usually formed of a single piece of hexagonal rod of hard steel, with blunt ends that are meant to fit snugly into the screws socket, bent in an l shape with unequal arms. Socket screws eye bolts eye lags ubolts socket screws, also known as allen head, are fastened with a hex allen wrench. Find a more comprehensive fastener type chart at carriage bolts.
Types of bolts designing buildings wiki share your construction industry knowledge. Fastener basics bolt depot nuts and bolts, screws and. We have the charts to help you identify the many different types of bolts and screws for just about any project. Thousands of new, highquality pictures added every day. A bolt is a type of fastener, usually made from metal, that commonly comprises a head at one end, a chamfer at the other, and a shaft characterised by an external helical ridge known as a thread. But which is the right one for the specific job youre currently in the process of completing. This also greatly reduces the chance for dropped objects during installation. Comdox 320pack phillips cross pan head machine screws bolts nuts assortment kit, carbon steel, black oxide finish, m3 m4 thread size, 8mm to 20mm length, fully threaded. Typically used for wood construction and landscaping. Join the grabcad community today to gain access and download. Improvised torque wrench improvised torque wrench with luggage scale.
We are your direct source for wholesale hex cap screws, self drilling screws, flange bolts, washers, socket products, nuts and much more. Double end stud bolts 24 bolts hex cap screws finished hex bolts 31 wrench openings for square and hex bolts and screws 32 to 33 heavy hex bolts 34 heavy hex structural bolts 35 highstrength structural bolting 36 carriage bolts and lag bolts 37 square bolts 38 step bolts and countersunk head elevator bolts 39 nuts. Bolt head types and practical uses elgin fasteners. Ajax fastener hand book issue99 pdf 2000 west coast fasteners. Stainless steel 14 yellow zinc 2 more ways to filter. Hex tap bolts, hex cap screws, trim head hex cap screws, and hex serrated flange bolts fall under this category. Hex head bolts are the industry standard for fasteners with forged heads. Socket screws, also known as allen head, are fastened with a hex allen wrench. How bolts screws studs and other threaded fasteners are made. Plow bolts similar to carriage bolts but used for attaching the cutting edge of a plow to the plow blade.
Most commonly used in the bulk production of bolts, screws, nuts for general engineering. The hex head cap screw is a common fastener in construction and machine assembly. Head sizes may differ from what is shown due to differences between metric standards. Hex head cap screws are typically used to create a bolted joint, in which a threaded shaft exactly fits a corresponding tapped. Mar 17, 2016 there is vast variety in the types of screws available. Iso 724 metric threads dimensions of metric threads according iso 724. Bolts can come fully or partially threaded depending on the bolt type. Birmingham fastener offers headed bolts in a variety of styles. Installation time is reduced as the flange nuts are free running onto bolts with no resistance, and are then tightened with one hand and one tool.
Many fo the socket head screws or bolts use the standard hexagonal allen style heads. The tables below are provided as a general guide to help you better understand metric and imperial measurements. Cad corner free autocad blocks, hatch patterns, lisp and. Carriage bolts arriage bolts have a domed or flat head with a square.
Many grades of hex bolts are designed with a larger head size called a heavy hex bolt. Lag bolts also called lag screws, lag bolts are essentially a larger version of a wood screw with either a square or hex head. Fastener type chart bolt depot nuts and bolts, screws and. Types of lug nuts types of construction nails wood screws vs. 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, jbolts, ubolts, shoulder bolts, elevator bolts, sex bolts, mating screws and hanger bolts. Astm a325 bolts astm a325 structural bolt a325 hex bolt. Lubricated bolts and reduced torque lubrication effect on bolt.
Always refer to project specifications and consult an engineer to ensure that your application is appropriate. Wood screws, machine screws, sheet metal screws, self drilling sms, hex bolts, carriage bolts, lag bolts, set screws, socket screws, eye bolts. There comes a time when every mechanic could use a quicker way to help measure their nuts and bolts. Screwhead buying guide chart showing 60 types of screws, screw heads, bolts, nuts and washers chart 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. In stock at store today 9 choose your preferred store. Bolt torque calculator calculate required bolt torque.
Standard and custom headed bolts hex head and round head. Allen bolt plural allen bolts a bolt whose head has a hexagonal socket. Oem style band lead free terminals in a variety of configurations quick cables standard line of copper tube lugs feature seamless construction and quality details you dont always find in oem quality parts. What are the different types of battery connectors and lugs. It is caused by a pushing or pulling force at 90 from the axis of a part.
Types of fasteners and fixings linkedin slideshare. Below is a description of a few different bolt head types and how they can be applied. Lag bolts and screws are rarely made into security screws because most security drives are not powerful enough to torque the screw without failing. To put it simply, basic differences between the bolts, screw and stud remain in their application. Check out our weekly blog for new posts every monday. Machine screws are fully threaded for use with a nut or in a tapped hole.
The world leader international certifications the unbrako production facilities are iso 9001, isots 16949, iso 14001, and bs ohsas 18001 certified. Although the strength is the same as type 1, type 3 bolts are made from weathering steel which contains copper, chromium and nickel. Thread types unified coarse thread series unc or unrc most commonly used in the bulk production of bolts, screws, nuts for general engineering applications. The charts shows the socket head cap screw, hexagon socket, spline socket and countersunk head to names some of the types used. These nut and bolt charts can help you do just that. Use this handy chart, courtesy, to get the name right the first time. The tool is usually held and twisted by the long arm, creating a large torque. Socket screws are machine screws with an internal hex socket allen drive. In regards to bolts, the types range from the fairly common hex bolt to the more unique hanger bolt. The screw head is designed to fit a ratchet or spanner torque wrenches allowing you to tighten the screw to your exact specifications. Fastener type chart bolt depot nuts and bolts, screws. Com we have every wheelchair axle, bolt, or nut still made toll free. This includes the head, length and more, however, the bolt thread is often the hardest to measure. Standard bolt size is measured from the surface of the material to its end.
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