providing much greater holding power than other self drilling anchors that are just a small screw in a larger screw

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

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

5/8-11 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

9/16-18 x 4 Hex Cap Screw SS 18-8 (A2) M24-3.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 providing much greater holding power9 16 18 x 4 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