The zinc body consists of a die cast zinc alloy

5/64 x 12 High Speed Aircraft Bit Cobalt

1/4-28 x 5 Grade 5 Hex Cap Screw Plain Domestic USA (50)

1-8 x 4 Grade 8 Hex Cap Screw Plain Domestic USA (10)

#2 Heavy Duty Jobber Drill Bit

3/8-16 x 2 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (400) Cap Nuts 18-8 Stainless Steel The zinc body consists of3 8 16 x 2 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (400). 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