9/16-12 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

5/16-24 x 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

1/4-20 x 4 Phillips Flat Machine Screw Type F Zinc Plated

1/2-13 x 2 1/2 A325 Type 1 Heavy Hex Bolt Plain (300)

1-8 x 1 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) 3/4-10 A307A Hex Bolts Hot Dipped Galvanized 9/16-12 x 3 Grade 51 8 x 1 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (10) . 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