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 4 18-8 Stainless Steel Coarse Thread Carriage Bolts 6PK
Specifications of 5/16-18 X 4 18-8 Stainless Steel Coarse Thread Carriage Bolts 6PK | |
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Category | |
Instock | instock |