Stainless Serrated Flange Lock Nuts (USS) Coarse

18-8 stainless steel serrated flange lock nuts, with a built-in flange that spreads the load and serrations that resist loosening, so no washer is needed. We stock #6-32, #8-32, #10-24, 1/4-20, 5/16-18, 3/8-16, 1/2-13.

Specifications

Material: 18-8 stainless steel
Sizes: #6-32, #8-32, #10-24, 1/4-20, 5/16-18, 3/8-16, 1/2-13
Style: serrated hex flange nut
Thread: USS coarse and machine screw

Also referred to as Wiz Nuts
Hex Nut with flange serrated bearing surface to displace
material forming a locking feature resistant to vibration and loosening.

Common Uses

Vibrating equipment
Sheet metal and panels
Assembly without a separate washer

FAQ

Do serrated flange nuts need a washer?
No. The flange acts as a washer and the serrations grip the surface. They will mark the surface, so don't use them on finishes you need to protect.

How do I stop stainless threads from galling?
Stainless threads can seize (gall) when tightened fast or under heavy load. Put anti-seize on the threads, tighten slowly at low speed, keep the threads clean and don't overtighten.

Can I use stainless with zinc plated or galvanized parts?
Use stainless nuts and washers with stainless bolts and screws. In wet conditions, stainless touching zinc plated, galvanized or aluminum parts can cause galvanic corrosion of the zinc or aluminum.

Free shipping on orders over $100, and orders placed before noon EST ship the same day. Purchase orders are accepted from government agencies, schools, hospitals, municipalities and companies with established credit with The Nutty Company, Inc.