Description

12mm-1.75 x 55mm Zinc Class 8.8 Carriage Bolts (35 pcs.) Diameter: 12mm Length: 55mm Material: Steel Finish: Red Rinsed Zinc Head Style: Carriage Thread Size: 1.75mm (Coarse) Thread Length: 30mm Hardness: Class 8.8 Style: Short Neck Type: Carriage Bolt Box of 35. 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.