18-8 stainless steel hex tap bolts will have a typical composition of 18% chromium and 8% nickel

3/4-10 x 8 1/2 Grade 5 Hex Cap Screw Zinc Plated

1/4-28 x 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (2700)

1/4-28 x 2 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (750)

1/4-20 x 3/8 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (6

3/8-16 x 1 3/4 Grade 5 Hex Cap Screw Plain Domestic USA (600) 7/16-20 Hex Cap Screws 18-8 Stainless Steel 18-8 stainless steel hex tap3 8 16 x 1 3 4 Grade 5 Hex Cap Screw Plain Domestic USA (600). 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