5/16-18 Serrated Flange Nuts – 304 Stainless Steel (18-8), Bright Finish, 25-Piece Set

About This Product

These 5/16-18 serrated flange nuts are a solid choice when you want a fastener that stays put.

The flange acts like a built-in washer, spreading the load over a bigger surface area so you don't damage your material.

And the serrations bite into the mating surface to resist loosening from vibration – perfect for machinery, automotive, or assembly line work.
Made from 18-8 (304) stainless steel, they resist rust and corrosion way better than plain steel, so they work indoors or out.
The bright finish looks clean and professional.
Threads are 5/16-inch with 18 threads per inch (TPI), and they meet DIN 6923 specs.

You get 25 pieces in the pack – enough for a decent-sized project or to keep in your spare parts bin.

Good chemical resistance, good holding power, and a price that won't make you wince.

If you need flange nuts that deliver, these are it.