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Discover trusted performance with our A307 Grade A Steel Hot-Dipped Galvanized Coarse Carriage Bolts, sized 5/16-18 x 3. These high-quality bolts deliver dependable strength and reliable corrosion resistance for timber and light metal fastenings.
Crafted from A307 Grade A steel for durability, each bolt features a robust hot-dipped galvanized coating to withstand outdoor and damp environments. The coarse 5/16-18 thread and classic carriage bolt design provide secure, easy installation in wood and composite assemblies. The domed head with a square neck under the head helps prevent rotation during tightening for a clean, flush finish.
Ideal for wood-to-wood fastening in deck construction, timber framing, furniture assembly, and other outdoor or interior projects requiring a sturdy, corrosion-resistant carriage bolt.