Hardness is Rockwell C32 maximum and proof load is 72

You can utilize these pieces of hardware in solid or hollow surfaces

3/4-16 x 5 1/2 Hex Cap Screw SS 18-8 (A2)

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

(A8™) 5/16 ALLIGATOR® Flush Mount Anchor Nylon (100)

5/8-11 x 6 1/2 Hex Cap Screw SS 316 (A4) 3/4-10 A307 Grade A Carriage Bolts Zinc Plated Hardness is Rockwell C32 maximum5 8 11 x 6 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.