Top Shelf 20000 Pcs M3.5 Metric Internal Tooth Lock Washers DIN 6797 Type J Steel Zinc Plated Dead Tight No Slack Fasteners For Aluminum And Plastic Builds Rock Solid Anti Loosening Hardware With Slick Grounding Contacts

M3.5 Metric Tooth Washers Secure Quick Mounting Kits Today
✔️ Pack of 20000 pieces DIN 6797 Type J spring steel M3.5 hardware

These twist tooth lock washers grab onto aluminum and plastic parts to keep bolts from shaking loose. Builders and electronics crews rely on them for vibration proof mounts that also double as handy grounding contacts for circuit boards.

✅ Pack of 20000 metric M3.5 fasteners for bulk assembly projects
✅ Clear zinc plated spring steel body resists rust and corrosion
✅ Inside diameter measures 3.7 to 3.88mm for snug bolt seating
✅ Outside diameter spans 6.64 to 7mm with a 0.5mm flat profile
✅ DIN 6797 Type J compliant design meets strict industrial standards
✅ All dimensions provided in millimeters for precise metric tooling

💡 How do internal tooth lock washers prevent loose bolts on soft metals?
These handy hardware pieces bite into softer substrates to lock fasteners in place without relying on tension springs.
- Sharp twisted teeth dig into aluminum and plastic parts for dead tight seating
- Metallic contact points create direct grounding paths for electronic housings
- Spring steel construction maintains steady pressure despite engine vibration
- Standardized metric sizing aligns with common machinery and DIY frames

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