1/2-20 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (100)

3/8-16 x 5/8 Grade 5 Hex Cap Screw Plain Domestic USA (1200)

1/2-20 x 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

5/8-11 x 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/4-20 x 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (750)

9/16-18 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (70) Phillips Bugle Hi-Low Drywall Screws Black Phosphate 1/2-20 x 6 Grade 59 16 18 x 6 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (70) . 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