Unifix Carriage Cup Square Hex Bolts and Nuts - M12

Unifix Carriage Cup Square Hex Bolts and Nuts are heavy duty fasteners ideal for joining metal to timber or securing large timber sections. Commonly used in woodworking, their square neck locks into the wood to prevent spinning during tightening, perfect for applications with limited access to the bolt head. The smooth, round head adds a tamper resistant finish, making them a reliable choice for structural and secure installations.