The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened. A carriage bolt has a domed or countersunk head, and the shank is topped by a short square section under the head.
Screws & Bolts,Carriage Bolts
5/16-18 X 3 Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts 10PK
Specifications of 5/16-18 X 3 Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts 10PK | |
---|---|
Category | |
Instock | instock |