Hardness of RC 38-43

1/2-20 x 3 1/2 Socket Set Screw Cup Point Alloy

1/4 x 3 Flat Split Drive Anchor Zinc Plated (100)

10-32 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

5/8-18 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (150)

7/16-20 x 1 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (50) Drop-In Anchor Setting Tools - Clearance Hardness of RC 38-437 16 20 x 1 3 4 Grade 8 Hex Cap Screw Plain Domestic USA (50). 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 diameters 1 4