hardness will range from HRC 31-39

1-8 x 1 Socket Set Screw Cup Point Alloy

1/4-28 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (350)

HeadLOK® offers higher design shear than 3/8" lag screws and no pre-drilling is needed

High-strength alloy clip on carbon-steel anchors: This special alloy clip offers improved performance

3/8-24 x 1 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (900) 1/2-13 Grade 5 Hex Cap Screws Plain - Domestic USA hardness will range from HRC3 8 24 x 1 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (900) . 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