5/16-24 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

1/2-13 x 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (400)

5/16-24 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (250)

1/2 x 12 High Speed Long Boy

1/4-20 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

9/16-18 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) 1/2-20 Grade 5 Hex Cap Screws Plain - Domestic USA 5/16-24 x 1 Grade 59 16 18 x 4 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100) . 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