Carriage Bolts, also known as Coach Bolts, are fasteners manufactured according to DIN 603. They feature a rounded or countersunk head with a square neck that prevents rotation after installation in wood or metal. They are commonly used for securing wooden and metal components where a smooth surface or tamper resistance is required.

DIN Standard: 603

Diameter Range: M6 – M16

Length Range: 20 mm – 250 mm

Grade: 4.8

Surface Finish: Z.P