Wedge Lock Washer — Pair, Cam-Action Locking
Wedge lock washers come in pairs. The two washers face each other with cam profiles between them and radial teeth on the outer faces. The cam angle is steeper than the bolt thread angle — when the bolt tries to rotate loose, the cams lock against each other and the bolt physically cannot back off without lifting against bolt preload.
Specifications
| Form | Paired (two washers, cam-faces inward) |
|---|---|
| Size Range | M5 – M48 |
| Material | Hardened spring steel, Stainless |
| Surface Finish | Zinc-flake (Delta-Tone style), Stainless, Black |
| Performance | Tested per Junker DIN 65151 — generally pass with no loosening at industry-standard test |
Frequently Asked Questions
Are these the same as Nord-Lock washers?
Nord-Lock is the original brand and the most widely recognized. Generic wedge lock washers using the same cam-and-tooth concept are produced by several manufacturers. They function on the same principle, though precision and material quality vary by brand. For critical applications, the brand-name product is generally recommended.
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