Carriage bolts have a smooth rounded head with a square neck underneath that locks into wood when tightened. Use with a pre-drilled hole and secure with a hex nut and washer to prevent spinning. They are great fasteners for decks, play equipment, docks, fencing, and furniture.
- The unique design is great for connections where the head is not accessible for tightening
- Made from galvanized steel for great corrosion resistance
- The self-locking square neck and coarse threads fasten very securely
- 6 in. thread length
- Includes 1 piece to complete your project