Description
A307 Grade A Steel Hot Dipped Galvanized Coarse Carriage Bolts 3/4-10 x 4 1/2 deliver dependable, corrosion-resistant connections for outdoor wood projects. Built from ASTM A307 Grade A steel and finished with a robust hot-dip galvanized coating, these carriage bolts stand up to the elements while delivering solid holding power in wood-to-wood joints.
Designed for strength and ease of installation, the 3/4-10 UNC coarse thread size pairs with standard lumber fasteners, and the round carriage bolt head with a square under-cut helps prevent turning during tightening. Ideal for decks, fences, pergolas, timber framing, or other outdoor structures.
Specifications
- Size: 3/4-10 x 4 1/2 inches
- Material: ASTM A307 Grade A steel
- Finish: Hot-dip galvanized (HDG) for superior corrosion resistance
- Thread: Coarse UNC 3/4-10
- Head: Round carriage bolt head with a square under-cut
- Applications: Wood-to-wood connections in decks, fences, pergolas, timber framing
- Standards: Meets ASTM A307 Grade A standard
Installation Tips
For best results, pre-drill pilot holes matched to the bolt size. Insert bolts from the finished side; the square under the head helps prevent turning as you secure nuts on the opposite side. Use appropriate nuts and washers when required by your project.
Upgrade your outdoor hardware with these durable carriage bolts to ensure lasting performance in wood construction projects.
Can We Help?
If you’re not sure that this product is right for you, give us a call!
800-222-0324