5/8-18 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1/4-28 x 3 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (550)

7/16-20 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (225)

5/16-24 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (800)

5/8-18 x 8 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (70)

1-8 x 9 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) 1 1/8-7 Socket Set Screws Cup Point Alloy 5/8-18 x 6 Grade 51 8 x 9 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) . 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