Carriage bolts feature a smooth, rounded head and a square shoulder beneath it that grips the material to prevent spinning while the nut is tightened.
Diameter: 8mm
Length: 50mm
Material: Steel
Finish: Red Rinsed Zinc
Head Style: Carriage
Thread Size: 1.25mm (Coarse)
Thread Length: 22mm
Hardness: Class 8.8
Style: Short Neck
Type: Carriage Bolt
A carriage bolt has a domed or countersunk head, and the shank is topped by a short square section under the head. The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened.
