The cold-rolled steel pin and mushroom head configuration make this anchor tamper resistant

On diameters over 2 1/2 inches

3/16 Heavy Duty Jobber Drill Bit

5/64 Cobalt Heavy Duty Jobber Drill Bit

1/2-13 x 7 Grade 8 Hex Cap Screw Yellow Zinc Plated

5/8-18 x 2 1/2 Hex Cap Screw SS 18-8 (A2) 3/4-10 Grade 5 Hex Cap Screws Zinc Plated The cold-rolled steel pin and5 8 18 x 2 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