5/8-18 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

1 1/2-6 x 3 Socket Cap Screw Alloy

1/2-20 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (150)

7/8-9 x 4 Hex Cap Screw SS 316 (A4)

9/16-18 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/4-20 x 1 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1400) 3/8-16 Hex Tap Bolts Silicon Bronze 5/8-18 x 6 1/2 Grade1 4 20 x 1 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1400) . 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