1/4-20 x 7/8 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (2500)

1/2-20 x 4 Socket Cap Screw Alloy

Typical hardness is HRB 68 - HRC 32

3/4-10 x 2 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20)

9/16-18 x 5 1/2 Socket Cap Screw Alloy

7/8-9 x 18 A307A Hex Bolt Plain Steel 1-8 Socket Cap Screws Alloy 1/4-20 x 7/8 Grade 57 8 9 x 18 A307A Hex Bolt Plain Steel. 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.