12mm-1.75 x 40mm Zinc Class 8.8 Carriage Bolts (50 pcs.)

Diameter: 12mm Length: 40mm 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 50. 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.