A carriage bolt, coach bolt or round head square neck bolt is used through iron strengthening plates on either side of a wooden beam. It is commonplace though to use them on bare timber, the squared section giving enough grip to prevent rotation.
5/16-18 x 4-1/2 Carriage Bolts and Nuts Hot Dip Galvanized Quantity 50
Was:
$142.64
Now:
$71.32
- SKU:
- ZYB528373
- UPC:
- 1160014316395
- Condition:
- New
- Availability:
- Free Shipping from the USA. Estimated 2-4 days delivery.