#1 x 6 High Speed Aircraft Bit Cobalt

1/2-13 x 8 Flat Socket Cap Screw Alloy

• Material: Grade A per ASTM A563

1-8 x 5 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (25)

1/2-13 x 8 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/2-20 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) 7/16-14 Hex Cap Screws 316 Stainless Steel #1 x 6 High Speed1 2 20 x 4 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (125) . 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