Cup Square Coach Bolts Bright Zinc Plated

A type of bolt used predominantly in woodworking. Ideal for fastening metal to timber, or joining heavy timbers. The square under the head bites and locks into the timber, preventing the bolt from spinning, which is ideal where there is limited access to both ends when tightening. The round head is also tamper-proof.

Sizes Available: M6, M8, M10, M12, M16