Typical hardness will range from HRB 69-100 and a minimum tensile strength of 60

1-8 x 4 1/2 Grade 5 Hex Cap Screw Zinc Plated

1/2-13 x 9 Grade 8 Hex Cap Screw Yellow Zinc Plated

7/8-9 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated

1-8 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/2-13 x 9 Hex Cap Screw SS 18-8 (A2) 5/8-11 Grade 5 Hex Cap Screws Zinc Plated Typical hardness will range from1 2 13 x 9 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