Back-out resistance: once driven home

5/8-11 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

1 1/8-7 x 5 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (8)

50 x 70 Flat Socket Cap Screw 12

5/8-18 x 4 Hex Cap Screw SS 18-8 (A2)

7/8-9 x 9 A307A Hex Bolt Zinc Plated 1 1/2-6 Socket Set Screws Cup Point Alloy Back-out resistance: once driven home7 8 9 x 9 A307A Hex Bolt Zinc Plated . 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.