The third generation of this patented wall anchor comes with these improvements:

Tensile strength for diameters 1/4 to 1 inch is a minimum of 120

5/16-18 x 2 1/2 Hex Sleeve Anchor Zinc Plated (50)

1 1/4-12 x 7 Socket Cap Screw Alloy

7/8-14 x 1 1/2 Hex Cap Screw SS 18-8 (A2) 2-4 1/2 Socket Cap Screws Alloy The third generation of this7 8 14 x 1 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