HRB 95 - HRC 35 for diameters over 1 1 1/2 inches

1/2-20 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (300)

7/8-9 x 6 Hex Cap Screw SS 18-8 (A2)

3/4-10 x 5 Socket Cap Screw 18-8 (A2) Stainless Steel

1/2-20 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50)

9/16-12 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (225) Phillips Flat TITEN Concrete Screws Blue HRB 95 - HRC 359 16 12 x 2 Grade 5 Hex Cap Screw Plain Domestic USA (225). 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