9/16-18 x 6 Hex Cap Screw SS 18-8 (A2)

The zinc plating provides a protective layer that enhances resistance against moisture

5/16-18 x 8 Socket Cap Screw Alloy

3/4-10 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

9/16-18 x 5 1/2 Hex Cap Screw SS 18-8 (A2)

3/4-16 x 3 1/2 Hex Cap Screw SS 316 (A4) 1 1/8-12 Socket Cap Screws Alloy 9/16-18 x 6 Hex Cap3 4 16 x 3 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.