4-40 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

5/8-11 x 12 A307 Grade A Carriage Bolt Zinc Plated

1/2-13 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100)

1/4-20 x 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (3300)

5/8-18 x 5 1/2 Hex Cap Screw SS 18-8 (A2)

3/4-10 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) Long Arm Hex Keys Alloy - Metric 4-40 x 3/8 Phillips Flat3 4 10 x 1 3 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) . 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