These percentages exist in 303

5/8 x 10 Hex Lag Screw Zinc Plated

1/4-28 L9 Hex Nut Alloy Cadmium Yellow and Wax Coated Domestic USA (100)

1/2-20 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (1100)

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9/16-18 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (25) 3/8-16 Grade 8 Hex Cap Screws Plain - Domestic USA These percentages exist in 3039 16 18 x 6 Grade 5 Hex Cap Screw Plain Domestic USA (25). 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 120,000