142" (118 mils

Conform to ASTM F879

1-8 x 1 1/2 Socket Cap Screw Alloy

3/4-10 x 6 Flat Socket Cap Screw Alloy

2 1/4-12 A194 2H Heavy Hex Nut Plain

5/16-18 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (1000) HeadLOK Heavy Duty Flathead Fasteners 142" (118 mils5 16 18 x 1 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (1000). 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