5/16"-18 Hot Dip Galvanized Carriage Bolt
Diameter - Thread Pitch: 5/16-18
5/16"-18 Hot dipped galvanized carriage bolts have a domed or countersunk head, and the shank is topped by a short square section under the head.
- Square section grips into the part being fixed (typically wood)
- Prevents the bolt from turning when the nut is tightened
- Carriage Bolts under 6 inches are fully threaded
- Sizes over 6 inches in length have a shoulder
- Coarse Thread