5/16-18 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (100)

9/16 Hex Key Short Arm Alloy

When removed

Coarse threads run approximately 2/3 up the shank to help draw the decking tightly to the substrate

3/8-24 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (100) 3/4-16 Socket Set Screws Cup Point Alloy 5/16-18 x 1 1/2 Grade3 8 24 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (100). 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 to