Silicon Bronze Hex Tap Bolts are similar to low carbon steel in hardness but offer high resistance to corrosive environments such as sea water

7/16-20 x 4 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

including anchor bolts

1-12 x 2 Socket Cap Screw Alloy

3/4-16 x 2 1/2 Hex Cap Screw SS 316 (A4)

1-14 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) 3/4-10 Grade 5 Hex Tap Bolts Zinc Plated Silicon Bronze Hex Tap Bolts1 14 x 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) . 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