18-8 nuts are characterized as having a chromium content of 18% and nickel content of 8-10%

9/16-18 x 3 Grade 5 Hex Cap Screw Plain Domestic USA (150)

They install quickly

5/16-24 x 3 Grade 8 Hex Cap Screw Plain Domestic USA (100)

This 200-piece keg of 7/8-9 x 4 1/4 A325 Type 1 heavy hex bolts is made of plain domestic steel for reliable performance

1-8 x 2 1/4 A325 Type 1 Heavy Hex Bolt Hot Dipped Galvanized - Bulk Keg (260) 6" Aircraft Bits - Wire Gauge 18-8 nuts are characterized asThis A325 Type 1 Heavy Hex Bolt is hot dipped galvanized for durable corrosion protection. This 260 piece bulk keg contains 1 8" x 2 1 4" machine threaded bolts for a wide range of applications. The hot dip galvanizing provides a strong and robust material for extended use.