The carbon steel pin and mushroom head configuration make this anchor tamper resistant

1/4 x 2 1/2 Nailon™ Anchor Mushroom Zinc Plated (100)

Low profile head diameter is twice the rivet body diameter

Good for exterior and most marine applications

3/4-10 x 9 Hex Cap Screw SS 18-8 (A2) Finished Hex Nuts 18-8 Stainless Steel The carbon steel pin and3 4 10 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