Description
A307 Grade A Steel Hot Dipped Galvanized Coarse Carriage Bolts 3/8-16 x 1 1/2 are rugged heavy-duty fasteners engineered for durable wood-to-wood connections in outdoor and structural projects. Constructed from robust A307 Grade A steel and enhanced with a hot-dipped galvanized finish, these carriage bolts deliver reliable strength and long-lasting corrosion resistance in harsh environments.
Key features
- Material: A307 Grade A steel for high strength and reliability
- Finish: Hot-dipped galvanized coating for superior corrosion protection
- Thread: Coarse 3/8-16 UNC thread for quick, secure assembly
- Dimensions: 3/8" diameter, 16 threads per inch, 1-1/2" length
- Head type: Carriage bolt with a square shoulder under the head to prevent rotation during tightening
- Applications: Ideal for deck boards, fencing, timber framing, and other wood-to-wood connections
Why choose these carriage bolts?
The combination of Grade A steel and hot-dip galvanization ensures long-term performance in outdoor structures. The coarse thread provides strong engagement in softwoods and hardwoods, while the carriage bolt design offers a clean, flush appearance once installed.
Applications
Perfect for building and repairing decks, fences, railings, pergolas, and other exterior wood projects where dependable, corrosion-resistant fasteners are essential.
Can We Help?
If you’re not sure that this product is right for you, give us a call!
800-222-0324

