Carriage Bolts

A reliable source for Industrial Bolt information and leading Industrial Bolt Companies & Manufacturers.

Though they are made for wood, they are usually made from various types of steel, which aids in strength and durability. Read Moreā€¦

Carriage Bolts Carriage bolts are a type of threaded fastener that is specifically designed to be used with wood, though custom versions can be made to work with metal. Also called coach bolts or plow bolts, carriage bolts are quite common and can be found at most hardware stores in a number of lengths, diameters and thread pitches.

Leading Manufacturers

Hackensack, NJ  |  800-272-3673

Our company has a reputation for superior products, customer service, and dependability. All our fastener products are built to last, and we know that our customers appreciate our dedication to using the best materials and manufacturing techniques. If you would like to learn more about us, contact us by phone or email, or stop by our website today!

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Ford Fasteners, Inc. $$$

Jefferson, OH  |  888-536-3674

Our company has manufacturing experiences dating back to 1970 and over the years we have grown into an international supplier of bolts.

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Ken Forging $$$

Strongsville, OH  |  800-729-9779

At Stelfast, we provide bolts in a variety of shapes, sizes, styles and materials. We aim to be your #1 source for quality products and great customer service. Our bolts and fasteners include: anchor, carriage, eye, lag, elevator, machine, large diameter, nuts, screws, pins and more.

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Stelfast® Inc. $$$

Mansfield, TX  |  877-844-8595

We are located in The Dallas area, but we are dedicated to serving customers everywhere. Our products serve many industries including automotive, construction, and many others! We have been producing high quality products since 1984 and this is a tradition that we strive to continue! Get in touch with our customer service department today to learn more about what we may do for you!

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AFT Fasteners $$$

Madison, IL  |  800-237-7059

St. Louis Screw & Bolt has been in the nut and bolt business since 1887. We are a manufacturer of cold and hot formed A325 and A490 structural, bridge and anchor bolts. We also manufacture hot forged special bolts, stainless steel bolts and u bolts from 1/2" - 4" in diameter.

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St. Louis Screw & Bolt $$$

Lansdale, PA  |  215-855-5633

Nickel Systems is a distributor of industrial bolts and stainless steel bolts. We specialize in high nickel fasteners and precision machined parts like hex bolts, u bolts, hex nuts, jam nuts, washers, and pipe plugs. Our corrosion-resistant fasteners are offered in a wide array of choices for your convenience.

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Nickel Systems, Inc. $$$
placeholder image Ford Fasteners, Inc. Ken Forging Stelfast® Inc. AFT Fasteners St. Louis Screw & Bolt Nickel Systems, Inc.

A carriage bolt consists of a large round, domed head with an externally threaded bolt projecting from it. The head usually does not have slots for a screwdriver or other driving force, and is typically at least twice the diameter of the bolt shaft. Beneath the head is a square fitting that grips the wood as the bolt is placed and fastened. This fitting keeps the bolt from twisting or turning, and generally helps it maintain a snug fit.

Stainless Long Shank Eyebolt Stainless Long Shank Eyebolt - Ken Forging

This is the basic carriage bolt design, but there is some variation. For example, one variation replaces the square fitting with ribbing that holds the bolt in place, for use with other metal components. Carriage bolts vary in length and diameter according to their intended uses, regardless of the type of materials that are being fastened by the bolts.

Carriage bolts are often used in building and home improvement projects. They frequently secure pieces of timber together during the construction of outdoor decks, homes and pilings. They are also commonly used in machinery assembly, patio and ready-to-assemble furniture, chain link fences and even automobiles. Because the square fitting prevents the bolt from turning, carriage bolts are also a good choice for situations where the bolt head is not easily accessible.

When selecting carriage bolts for an application, it is important to choose ones that are the right width and length. Consider that a bolt that is too narrow may lead to the fastener failing under strain, causing breakage, while a bolt that is too large may cause stress to the surrounding wood or metal, causing cracks. It is also important to consider length, as the carriage bolt must be long enough to go through the material it is fastening, but not so long that the protruding end becomes a nuisance.

Carriage Bolt Informational Video