3/8-16 x 1 3/4 Grade 8 Hex Cap Screw Plain Domestic USA (100)

#3 drill points

9/16-12 x 5 Hex Cap Screw SS 316 (A4)

Special flute design improves penetration without blowback or compacting

1/4-28 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 3/8-16 Hex Cap Screws 18-8 Stainless Steel 3/8-16 x 1 3/4 Grade1 4 28 x 3 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) . 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