Choose the A307 Grade A Steel Hot Dipped Galvanized Coarse Carriage Bolts 5/16-18 x 4 for dependable, corrosion-resistant fastening in wood and metal projects. Crafted from A307 Grade A steel and finished with hot-dip galvanization, these carriage bolts deliver strong, long-lasting performance even in outdoor or damp environments. The coarse thread 5/16-18 provides quick, secure assembly with standard hardware.

• Size: 5/16-18 x 4 inches
• Material: A307 Grade A steel
• Finish: Hot dipped galvanized
• Thread: Coarse (5/16-18)
• Bolts Type: Carriage bolts

Engineered for reliability in construction and hardware applications where a strong, corrosion-resistant bolt is essential, these A307 Grade A galvanized carriage bolts offer long-lasting performance you can count on.