They are also acceptable for use in ACQ pressure-treated lumber

3/4-10 x 10 Grade 8 Hex Cap Screw Yellow Zinc Plated

1-8 x 1 1/2 Socket Cap Screw Alloy

1 7/8-8 A194 2H Heavy Hex Nut Hot Dipped Galvanized

18-8 stainless steel offers good corrosion resistance and machines easily but will over time stain in coastal environments

3/4-16 x 3 3/4 Hex Cap Screw SS 316 (A4) 5/8-11 Socket Cap Screws 18-8 Stainless Steel They are also acceptable for3 4 16 x 3 3 4 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.