Lengths over 6 to 12 inches will have 6 inches of thread

7/8-9 x 5 1/2 Grade 5 Hex Cap Screw Zinc Plated

In diameters 1/4 to 1 1/2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications

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

1-14 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated 1-8 Grade 5 Hex Cap Screws Zinc Plated Lengths over 6 to 121 14 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated . Grade 8 Hex Cap Screws are manufactured 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 diameters 1 4 to 2 1 2 inches is