Lock Washers
Helical spring and tooth washers that resist loosening.
Split-ring and tooth lock washers for vibration-prone joints.
Standards.
What are lock washers?
Lock washers fight loosening two ways: the helical spring (split) washer keeps stored tension under the nut as the joint settles, while tooth washers bite into the surfaces. They are the traditional vibration answer where a prevailing-torque nut is not specified.
- Helical spring (split) — regular and heavy sections
- Internal and external tooth styles
- Through-hardened, plated and stainless
Other names
- Split washers
- Spring washers
- Star washers (tooth styles)
Tips for purchasing
- High-strength structural joints do not use split washers — preload does the locking; ask us when unsure.
- Tooth washers mark the surface — use where finish doesn't matter.
- Certs on request.
Materials.
Representative capabilities — every item is manufactured or certified to your specification. Confirm requirements with our estimating team.
Commercial Flat Washers
General-purpose flat washers for load distribution.
SAE & USS Washers
Narrow (SAE) and wide (USS) flat washer patterns.
Nord-Lock® Wedge Lock Washers
Genuine Nord-Lock® wedge-locking washer pairs, supplied by an authorised distributor, that lock bolted joints against vibration with tension rather than friction.