304 and 305 series stainless steels so 18-8 is used at times to designate any and all of those alloy groups

29/64 Cobalt Heavy Duty Jobber Drill Bit

which means you can use them when you work in the same wall without them coming loose

75 x 200 Hex Cap Screw 8

7/8-9 x 8 Flat Socket Cap Screw Alloy

3/4-10 x 4 Hex Tap Bolt 18-8 (A2) Stainless Steel 7/16-14 Hex Cap Screws 316 Stainless Steel 304 and 305 series stainless3 4 10 x 4 Hex Tap Bolt 18 8 (A2) Stainless Steel . 18 8 stainless steel hex tap bolts will have a typical composition of 18% chromium and 8% nickel. These percentages exist in 303, 304 and 305 series stainless steels so 18 8 is used at times to designate any and all of those alloy groups. 18 8 stainless steel offers good corrosion resistance and machines easily but will over time stain in coastal environments. They are also acceptable for use in ACQ