Carriage Bolts

We offer a wide range of metal bolts and studs. What is the difference between screws and bolts?

Bolts can be described as long shafts with a distinct head on one side. These are generally partially threaded. A fully threaded bolt is referred to as a screw.

Square Neck Carriage Bolts 

It is distinguished from other bolts by its shallow mushroom head followed by a square neck, while the shank cross section of the bolt is circular.

This gives the bolt its self locking feature. The square neck grips into the part being fixed preventing the head from turning when the nut is tightened.

Standard – DIN 603