7/16 -14 x 1-1/2 Zinc Grade 5 Carriage Bolts (50 pcs.)

Diameter: 7/16 Length: 1-1/2 Material: Steel Finish: Zinc Head Style: Carriage Thread Size: 14 (Coarse) Thread Length: Full Hardness: Grade 5 Type: Carriage Bolt Square-Depth: 1/4 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.