This listing is for new US / Inch Hex Nuts in Stainless Steel. These are standard Hex Nuts (also called Finished Hex Nuts) in 18-8 / A2 Stainless Steel. ASTM F594

Available sizes:

1/4"-20

1/4"-28 (Fine)

5/16"-18

5/16"-24 (Fine)

3/8"-16

3/8"-24 (Fine)