3/8 x 12 High Speed Aircraft Bit Cobalt

5/8-18 x 4 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated

acceptable for ACQ pressure treated lumber

1/2 x 18 Hex Lag Screw Hot Dipped Galvanized

8-32 x 1 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (7

7/8-9 x 2 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (15) 18" Aircraft Bits - Fractional 3/8 x 12 High Speed7 8 9 x 2 1 4 Grade 8 Hex Cap Screw Plain Domestic USA (15). 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