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

Industrial quality

Ideal for securing clips used in standing seam roofing

Coarse threads are designed for softer wood and cabinet framing assembly

33/64 x 6 Reduced Shank Drill Bit Cobalt (1/2 Shank)

7/16-14 x 7/8 Grade 5 Hex Cap Screw Plain Domestic USA (700) Hex Washer Head Metal-Panel Screws 316 Stainless Steel with EPDM Washer Silicon Bronze Flat Washers are7 16 14 x 7 8 Grade 5 Hex Cap Screw Plain Domestic USA (700). 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