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Metric Stainless A2 (18 8) INTERNAL/EXTERNAL Tooth Lock Washer, DIN 6797
Our Metric Stainless Steel A2 (18‑8) Internal and External Tooth Lock Washers manufactured to DIN 6797 are corrosion‑resistant locking components designed to resist loosening caused by vibration, shock, and movement. Produced from A2 stainless steel (18‑8 / Type 304 equivalent), these lock washers offer excellent resistance to rust, oxidation, and general environmental exposure, making them suitable for indoor and light‑to‑moderate outdoor applications.
The DIN 6797 tooth lock washer design features sharp, serrated teeth that bite into the fastener head and the mating surface during installation.
- Internal tooth lock washers have teeth on the inner diameter and are typically used where washer visibility must be minimized or where smaller fastener heads are present.
- External tooth lock washers feature teeth on the outer diameter, providing a wider locking surface and increased resistance to rotation.
Engineered for dependable locking performance, A2 Stainless DIN 6797 Internal and External Tooth Lock Washers are commonly used in electrical assemblies, motors, equipment enclosures, machinery, automotive components, and general industrial installations. The tooth design helps maintain preload, provides vibration resistance, and supports electrical continuity in grounding applications. Stainless 18‑8 construction ensures long service life while maintaining compatibility with stainless fasteners. Available in a wide range of metric sizes, these lock washers deliver a reliable fastening solution for OEM production, maintenance, and repair operations.
