Our 5/16" diameter stainless steel carriage bolts offer a secure and long-lasting fastening solution for your woodworking projects. The domed or countersunk head and square shank provide excellent gripping power, ensuring the bolt will remain in place no matter how tight the nut is secured.

Securely connect metal and wood surfaces with our Stainless Steel Carriage Bolts. Offering a self-locking design, these 5/16" bolts boast a shallow mushroom head and a shank with a square cross-section, allowing for easy installation with only one wrench. The non-threaded diameter is equal to the side of the square shank for improved grip.

The Stainless Steel Carraige Bolt is manufactured high quality stainless steel with a coarse 18 thread type.