Bolts

Carriage Bolt

A threaded fastener characterized by a domed or rounded head and a square section under the head. This square section prevents the bolt from turning when a nut is tightened on the opposite end, making it ideal for applications where a smooth, non-spinning head is desired. 

Eye Bolt

A fastener characterized by a looped end, or "eye," that allows for easy attachment of ropes, cables, or other rigging components. It essentially consists of a threaded shank (the bolt portion) with a loop at one end. Eye bolts are versatile and used in various applications, including lifting, securing, and rigging. 

Counterbore Bolts

Specialized fasteners designed to sit flush with or slightly below the surface of a material when used in conjunction with a counterbored hole. These bolts feature a flat head that is compatible with the flat bottom of a counterbored hole, allowing for a clean, flush surface finish. 

Full Thread Tap Bolt

A hex bolt, that is threaded along its entire length, from under the head to the tip.

Tap Bolt,

Also known as a fully threaded hex bolt, is a type of bolt characterized by threads that extend along its entire length, from the head to the tip. Unlike standard bolts, which typically have an unthreaded shank, tap bolts are designed to be screwed directly into a pre-threaded (tapped) hole. 

Machine Bolt

They are used with a nut or in a tapped hole and are tightened using a wrench. Machine bolts are generally characterized by their diameter (1/4 inch or more) and length, which can range from 1/4 inch to 30 inches

Bucket Tooth Bolt, #7 Head Plow Bolt

A specialized fastener used to attach bucket teeth to the edges of excavator and loader buckets. These bolts are designed with a low-profile, countersunk head to allow material to pass over them without obstruction and are often heat-treated for strength and durability. 

Counterbore and Countersink Bolts

Designed to accommodate screw or bolt heads. Countersinking creates a conical recess for tapered screw heads, allowing them to sit flush with the surface, while counterboring produces a cylindrical recess with a flat bottom, also for flush mounting, but typically for bolts with flat underside heads. 

Milled Stud

A double-ended stud, commonly used in various applications like turbine engines and hydraulic control valves. They are manufactured with specific thread fits (Class 5 on one end and Class 2A on the other) and are known for their ability to provide a strong, friction-fit, and self-locking connection.

Mating Fasteners, Sex Bolts, Barrel Screw, or Chicago Screws

Consists of a male screw and a female barrel nut that are designed to connect two or more pieces of material. The barrel nut has a threaded interior and a flange, while the screw has matching threads. When tightened, the screw draws the barrel nut and the material together, creating a strong and secure connection. 

Heavy Hex Bolt Grade B

A bolt specified by the ASTM A307 standard, particularly for applications involving flanged joints in piping systems. It's characterized by a heavy hex head, which is larger and thicker than a standard hex bolt, providing a greater bearing surface for distributing clamping loads. Grade B indicates a specific set of mechanical properties, including a tensile strength range of 60,000 to 100,000 psi, making it suitable for moderate-strength connections. 

A325 Structural Bolt

A heavy hex-headed bolt made from medium-carbon steel, meeting specific ASTM standards for use in structural steel connections. These bolts are designed with a flat bearing surface, a washer face, and a chamfered point, and are commonly used in construction and other applications requiring high-strength connections. They are available in various diameters and lengths, with Type 1 bolts made from medium carbon steel and Type 3 bolts from weathering steel for increased corrosion resistance

A490 Structural Bolt

High-strength, heat-treated alloy steel bolt designed for heavy-duty applications in structural steel connections, particularly in construction and infrastructure projects. These bolts are part of the ASTM F3125 standard (formerly covered under ASTM A490) and are known for their high tensile strength and ability to withstand significant loads.

Hex Flange Bolt

Hexagonal head with a flange underneath, acting as a built-in washer. This flange distributes the clamping force over a wider area, reducing the risk of the bolt sinking into the material and preventing loosening.

L-shaped Anchor Bolt

Has a shank bent at a 90-degree angle, forming an "L" shape. It's primarily used to anchor structural or non-structural components to concrete or masonry. The bent portion provides resistance against pull-out forces, ensuring a secure connection. 

Hex Cap Screw Shear Bolt

Combines the features of a hex cap screw and a shear bolt. It has a hexagonal head like a hex cap screw, but it's designed to snap off (shear) at a predetermined torque level once tightened, leaving a tamper-resistant head.

Headed Anchor Bolt

A fastener used to secure structural elements to concrete or masonry. It features a forged head on one end, which is embedded in the concrete, and a threaded end extending out for attachment to the structure above. The head provides a strong anchor point, preventing pull-out forces from dislodging the bolt

Earth Anchor Auger

A ground anchor, that is designed to be screwed into the earth to provide a secure point for securing various items like sheds, tents, or trees. It consists of a helical blade (the auger) attached to a shaft with an eyelet at the top for attaching ropes or cables

Hollo-Bolt

An expansion bolts perfectly suited for use in hollow sections, tubes and places where access is available from one side only.  For blind steel connection have patented collapse mechanism for optimized clamping force. They allow for speedy installation with standard tools.

Chemical Capsule Anchor

A fastener used to secure objects to concrete or masonry. It consists of a sealed glass capsule containing a resin and hardener, which are mixed when the capsule is broken by driving a threaded rod or rebar into it. This creates a strong, chemical bond between the anchor and the base material. 

Drop-in Anchor

An internally threaded concrete anchor that is set by driving a setting tool into the anchor with a hammer, causing it to expand and grip the surrounding concrete. These anchors are designed for use in solid concrete and are commonly used for hanging items like pipe supports, sprinkler systems, or electrical cable trays. 

Toggle Bolt or Butterfly Anchor

A two-part fastener used to secure objects to hollow walls like drywall, plaster, or sheetrock when a stud isn't accessible. It works by creating a strong, load-bearing connection on the back side of the wall, distributing the weight of the secured item. 

Wood Screw Anchor

A fastener, often made of lead or a similar alloy, that is used to secure objects to wood or other materials like brick, block, or concrete. It works by being inserted into a pre-drilled hole and then expanded as a wood screw or similar item is driven into it, creating a tight and secure hold. 

Double Expansion Shield Anchor / Double Mach Bolt Shield

An anchor used to fasten objects to concrete, brick, and other masonry materials. It features a dual-expansion mechanism that provides a strong and secure hold, making it suitable for medium-duty to heavy-duty applications, especially where vibration or shear loads are present. 

Machine Screw Anchor

A concrete anchor designed to be used with machine screws in materials like concrete, brick, and block. It features internal threads that allow a bolt or screw to be easily installed and removed. These anchors are suitable for light to medium-duty fastening applications. 

Hex Sleeve Anchor

An expansion anchor used to fasten objects to concrete, masonry, or other solid base materials. It consists of a threaded bolt, a metal sleeve that expands when tightened, and a hex head or acorn nut. The hex head allows for easy tightening with a wrench. 

Socket Shoulder Bolt, Shoulder Screw or Stripper Bolt,

A smooth, unthreaded shoulder beneath the head. This shoulder allows for precise positioning and rotational movement of components in various applications. The threaded portion of the bolt screws into a receiving hole, while the shoulder provides a bearing surface for other parts to rotate or slide against. 

Wedge Anchor

A concrete anchor used to secure objects to concrete or masonry surfaces. It consists of a threaded rod, a wedge-shaped expansion clip, and a nut. When tightened, the wedge expands and grips the concrete, creating a strong, reliable hold. 

Elevator Bolt

Characterized by its large, flat head and square neck. It's designed for applications where a flush or low-profile surface is needed, and the square neck prevents the bolt from turning when tightened. Originally designed for attaching elevator buckets to conveyor belts, they are now used in various industries for applications requiring a smooth, flush surface. 

Hanger Bolt

A headless fastener with different threading on each end: one end has a lag screw thread for screwing into wood, and the other end has a machine screw thread for attaching to a nut or internally threaded hole. They are commonly used to hang objects from wooden structures or to join wooden and metal components. 

Hanger Mate

Anchors designed to securely attach threaded rods to overhead surfaces, allowing for the suspension of various items like pipes, conduit, ductwork, and other equipment.   

Clipped Head Plow Bolt  

A high-strength bolt designed for heavy-duty applications, particularly in equipment like snow plows, where a flush surface is desired for the bolt head. It's characterized by a flat, slightly domed head with two opposite sides clipped off, creating a rectangular profile. This design allows the bolt head to sit flush with the surface it's securing, preventing snagging or obstruction. 

Step Bolt

Similar to a carriage bolt, but with a larger, lower-profile round head designed for applications where a smooth, safe surface is needed. It's characterized by a smooth, unthreaded portion (neck) below the head and a threaded section for secure fastening.

 Square Head Bolt 

A fastener with a four-sided square head. These bolts are used in various applications where ease of tightening, visual inspection, or a specific aesthetic is desired. 

Split Bolt, Bundy Bolt or Bug

A type of wire connector used to join two or more electrical wires, often in splicing, tapping, or grounding applications. It consists of a threaded bolt that is split along its length, allowing wires to be inserted and then clamped together by tightening a nut. 

T-Slot Bolt

Specialized bolt with a T-shaped head designed to slide into the channel of a T-slot and secure workpieces. It's commonly used in machine tool tables and aluminum extrusion systems for work holding and assembly. The T-head allows the bolt to be inserted into the slot at any point along its length and then rotated to secure it, offering flexibility in positioning and clamping.

U-Bolt

Bolt in the shape of the letter "U" with threaded ends. It's primarily used to secure pipes, channels, and other cylindrical objects by clamping them to a support structure. U-bolts are versatile and found in various applications, including automotive, construction, and plumbing