Fastenere Stainless Steel Keps K-Lock Nuts – 10-24, Free-Spinning Washer, Qty 25, Grade 18-8

Need a nut that won't back off?

These Keps nuts (also called K-Lock or free-spinning lock nuts) have a built-in washer that's serrated on the bottom.

You get 25 of them, size 10-24.

Made from 18-8 stainless steel by Fastenere, so they're strong and rust-resistant.

The serrated washer bites into the surface to prevent loosening from vibration.

No need for a separate lock washer.

Perfect for electronics, automotive, or any project where you want a secure, permanent hold.