5/8 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (625)

1/2-20 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1/4-20 x 3 1/4 Grade 5 Hex Cap Screw Plain Domestic USA (50)

#13 x 6 High Speed Aircraft Bit Cobalt

1 1/8-7 x 6 Socket Cap Screw Alloy

3/8-16 x 2 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 1-8 A307A Hex Tap Bolts Zinc Plated 5/8 L9 USS Tension Flatwasher3 8 16 x 2 1 4 Grade 5 Hex Cap Screw Zinc Plated 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