5/16-18 x 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100) 18" Long Boy Drill Bits 2 1/2 F436 Flat Washer

2 1/2 F436 Flat Washer Plain

1/4-28 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (1800)

#20 x 6 High Speed Aircraft Bit Cobalt

7/8-14 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated

5/16-18 x 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100) 18" Long Boy Drill Bits 2 1/2 F436 Flat Washer5 16 18 x 1 2 Grade 5 Hex Cap Screw Plain 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