1/2-13 x 4 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

Mechanical Properties:

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#15 Heavy Duty Drill Bit - Stubby Length

Medium degree of corrosion resistance

9/16-12 x 3 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (125) 5/16-18 Grade 5 Hex Cap Screws Plain - Domestic USA 1/2-13 x 4 1/2 Grade9 16 12 x 3 1 2 Grade 5 Hex Cap Screw Plain 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