including excessive moisture and extreme temperatures

5/16-18 x 6 Grade 8 Hex Cap Screw Plain Domestic USA (250)

1/4 x 2 1/2 Flat Split Drive Anchor Zinc Plated (100)

5/16-24 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (100)

1-8 x 6 A307A Hex Bolt Hot Dipped Galvanized Square Drive Framing Screws including excessive moisture and extreme1 8 x 6 A307A Hex Bolt Hot Dipped Galvanized. A307A Hex Bolts are manufactured from low carbon steel, typically 1015 1022. Our A307A bolting meets or exceeds ASTM A307 Grade A. Material is manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. Tensile strength will meet or exceed 60,000 psi.