1/2-13 x 1 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (275)

9/16-18 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

Typical hardness on diameters 1/4 to 1 inch is HRC 25-34

3/8-16 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (550)

5/8-11 x 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (80) Phillips Modified Truss Wire Lath Screws 410 Stainless Steel 1/2-13 x 1 3/4 Grade5 8 11 x 4 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (80) . 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