000 psi minimum is met for plain or zinc plated material

3/4-10 x 8 Hex Cap Screw SS 316 (A4)

7/8-14 x 3 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

The self-undercutting

7/8-9 x 4 1/2 Hex Cap Screw SS 18-8 (A2) Flat Washers Silicon Bronze 000 psi minimum is met7 8 9 x 4 1 2 Hex Cap Screw SS 18 8 (A2) . 18 8 stainless steel hex cap screws will have a typical composition of 18% chromium and 8% nickel. These percentages exist in 303, 304 and 305 series stainless steels so 18 8 is used at times to designate any and all of those alloy groups. 18 8 stainless steel offers good corrosion resistance and machines easily but will over time stain in coastal environments. They are also acceptable for use in ACQ pressure