9/16-18 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (150)

3/4-16 x 3 Hex Cap Screw SS 316 (A4)

3/8-16 x 4 Hex Tap Bolt Silicon Bronze

1-8 x 1 1/4 Socket Set Screw Cup Point Alloy

1/2-20 x 2 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (200) 6" Aircraft Bits - Fractional 9/16-18 x 4 L9 Hex1 2 20 x 2 3 4 Grade 8 Hex Cap Screw Plain Domestic USA (200). 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