Grade 5 Hex Tap Bolts are made from AISI 1030-1541 or equivalent medium carbon steel

1-14 x 3 1/4 Socket Cap Screw Alloy

5/8 x 11 Hex Lag Screw Zinc Plated

1/2 x 18 High Speed Aircraft Bit

3/4-10 x 9 Grade 5 Hex Cap Screw Zinc Plated

3/4-10 x 5 Hex Tap Bolt 18-8 (A2) Stainless Steel 10-32 Socket Cap Screws Alloy Grade 5 Hex Tap Bolts3 4 10 x 5 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