Nuts are manufactured to meet a proof load of 90

9/16-12 x 1 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1/2-20 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (250)

00 x 50 Flat Socket Cap Screw 12

7/16-14 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (175)

1/2-20 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) 1 3/4-5 Socket Cap Screws Alloy Nuts are manufactured to meet1 2 20 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) . 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 of