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Carriage Bolts

Carriage Bolts

What are Carriage Bolts ?

Carriage Bolts are commonly used for fastening wood into metal, originally these bolts were used to secure the traces to carriages drawn by horses, hence their name.

This type of bolt features a round head with a square neck immediately below the head. As a result, these bolts are designed to be self locking when the square neck is secured, using a spanner, into a square hole or into softer materials such as wood.

Accu stocks Metric and Imperial Carriage Bolts in both partial and fully threaded variations. Carriage Bolts feature a machine screw thread, meaning they can also be used in metal applications.

Carriage Bolt Materials

Metric Carriage Bolts can be supplied in A2 and A4 Stainless Steel, whilst Imperial Carriage Bolts are available solely in A2 Stainless Steel as standard. Chemical Blackening and Thread Locking options are available as required.

Coach Bolts Vs Carriage Bolts

Unlike Coach Bolts, also commonly referred to as Lag Bolts, a Carriage Bolt features a domed mushroom shaped head with a square neck and a flat tipped screw thread designed to be compatible with Nuts and threaded holes. For a detailed explanation of both Coach Bolts and Carriage Bolts, please take a look at our article discussing the differences between these fasteners.

Bespoke Carriage Bolts Manufacture

High precision, bespoke manufacture of Carriage Bolts to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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