1/2-13 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (25)

3/8-16 x 5 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

1/4 x 18 High Speed Aircraft Bit

3/4-10 x 8 Flat Socket Cap Screw Alloy

7/16-14 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (200)

5/8-11 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (175) 1 1/8-7 L9 Hex Cap Screws Yellow Zinc Plated - Domestic USA 1/2-13 x 3 1/4 Grade5 8 11 x 1 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (175) . Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum