3/16 x 4 Phillips Flat Hi-Low Thread Concrete Screws Blue Ceramic Coated

Hardness requirements of HRB 68 - HRC 32 are met or exceeded

5/8-11 x 1 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (200)

5/8-11 x 7 1/2 Hex Cap Screw SS 316 (A4)

5/8-11 x 14 A307 Grade A Carriage Bolt HDG

1/4-20 x 1 Grade 5 Hex Cap Screw Plain Domestic USA (2200) SDS Max X-Cutter Hammer Drill Bits 3/16 x 4 Phillips Flat1 4 20 x 1 Grade 5 Hex Cap Screw Plain Domestic USA (2200). 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