Grade 5 Hex Cap Screws are manufactured from medium carbon steel

5/8-11 x 3 1/4 Socket Cap Screw 18-8 (A2) Stainless Steel

316 stainless steel has greater corrosion resistance than 18-8 as well as superior strength at high temperatures

3/8-16 x 3 3/4 Simpson Wedge Anchor 304 SS (50)

00 x 50 Hex Cap Screw DIN 933 A2 (18-8) Stainless Steel - DIN 933 A2 Hex Cap Screws are manufactured from A2-70 stainless steel per ISO 3506 part 1

1 1/4-7 Finished Hex Nut SS 18-8 (A2) M24-3.00 Hex Cap Screws DIN 933 18-8 Stainless Steel (A2) Grade 5 Hex Cap Screws1 1 4 7 Finished Hex Nut SS 18 8 (A2) . Finished Hex Nuts in 18 8 stainless steel are for use with stainless steel bolts or screws with a specified minimum tensile strength equal or less than the specified proof stress of the mating nut. 18 8 nuts are characterized as having a chromium content of 18% and nickel content of 8 10%.