Hot-Dip Galvanized material will meet or exceed ASTM A153 and/or ASTM F2329

5/8-11 x 7 1/2 Hex Cap Screw SS 18-8 (A2)

#18 Heavy Duty Jobber Drill Bit

1-14 x 2 1/4 Socket Cap Screw Alloy

3/4 x 6 Hex Lag Screw Hot Dipped Galvanized

9/16-12 x 2 1/2 Hex Cap Screw SS 316 (A4) 7/8-9 Grade 8 Hex Cap Screws Yellow Zinc Plated Hot-Dip Galvanized material will meet9 16 12 x 2 1 2 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.