Stainless Internal Tooth Lock Washers

410 stainless steel internal tooth lock washers, with teeth on the inside edge that bite into the screw head and surface, hidden under the head. We stock #4, #6, #8, #10, 1/4", 5/16", 3/8". 410 stainless is hardened, so the teeth bite in and hold their shape.

Stainless Internal Tooth Lock Washers | The Nutty Company, Inc.

Specifications

Material: 410 stainless steel (hardened)
Sizes: #4, #6, #8, #10, 1/4", 5/16", 3/8"
Style: internal tooth lock washer

Common Uses

Electrical and electronic assemblies
Small screws where looks matter

FAQ

Internal or external tooth lock washer?
Internal teeth hide under the screw head for a neat look. External teeth grip more surface and hold better, but show around the head.

Do I need a washer?
A flat washer spreads the load, protects the surface and stops the nut or head from digging in. Use a stainless washer with stainless fasteners.

Will 410 stainless tooth washers rust?
410 stainless is hardened for spring and bite, but it is less corrosion resistant than 18-8. It can show light surface rust in wet or salty locations.

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.