7/16-20 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/8-18 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (125)

1/2-20 x 7 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (80)

sewage and atmospheric conditions

1/2-13 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (125) 1 1/4-7 A307A Hex Bolts Zinc Plated 7/16-20 x 5 1/2 Grade1 2 13 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (125) . Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on