Dead Nuts Secure 20mm Stainless Steel Wedge Lock Washers 100 Pack Heavy Duty Anti Loosening Bolt Fasteners Top Shelf General Purpose Hardware Plain Finish Bulk Pack
✔️ Set includes 100 units, suits 20mm fasteners, 4.65mm thick steel
Wedge lock washers stop fasteners from vibrating loose during heavy loads. You receive a hundred units per box, making this ideal for large repair crews or ongoing production runs. Install these stainless steel wedges under nut heads on engines, trailers, and industrial racks to keep assembly tight over time.
✅ Made from corrosion resistant stainless steel for lasting service life
✅ Scaled to mate with 20mm diameter hex bolts and threaded rods
✅ Features a robust 4.65mm thickness rated at HRC 25 hardness
✅ Measures 35.1mm across the outer edge and 20.82mm inner bore
✅ Delivered in a plain matte finish suitable for general purpose tasks
💡 When tightening critical assemblies, why pick wedge design washers instead of standard plain discs?
The unique shape forces resistance against rotation long after torque drops.
- Features a twisted geometry that digs in to block reverse movement without extra parts.
- Maintains clamp force on 20mm bolts through thermal expansion and contraction cycles.
- Prevents self-loosening caused by dynamic loads that shake loose standard joints.
- Offers reliable retention in general fabrication jobs where access for tools is limited.