Tooth Lock Washer / Star Washer (DIN 6797)
Tooth lock washers have radial teeth (internal, external, or both) that bite into the mating surfaces, providing some anti-loosening action and creating an electrical bonding path through paint or coatings.
Specifications
| Standards | DIN 6797 A (external teeth), DIN 6797 I (internal teeth), DIN 6797 V (countersunk) |
|---|---|
| Size Range | M3 – M16 |
| Material | Spring steel, Stainless |
| Use | Light-duty anti-loosening, electrical grounding/bonding |
Frequently Asked Questions
What's the electrical bonding application of a tooth lock washer?
When tightened, the teeth scrape through paint or oxide layers on the mating surfaces, creating clean metal-to-metal contact. This is the standard way to make a reliable electrical ground connection through painted enclosures or grounding lugs.
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