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5/8-18 x 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)
4-40 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10
1 5/32 x 6 Reduced Shank Drill Bit (1/2 Shank)
7/8 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (30)
1/2-13 x 7 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated
5/16-24 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) 6" Aircraft Bits - Fractional 5/8-18 x 3 L9 Hex5 16 24 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) . 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