Straight Up Tough Metal Wedge Lock Washers for Bolt and Nut Anti Loosening Hardware Fastener Kit Heavy Duty Industrial Grade Locking Plates Knockout Quality Garage Gear and Workshop Essentials

Copper Wedge Lock Washers Block Nuts From Rotating Free
✔️ Five copper cut sizes from M8 to M20 deliver steady locking force

These copper locking plates secure bolts and nuts against vibration driven loosening during heavy duty work. You will commonly install them in machinery frames, automotive chassis builds, and industrial press fixtures where steady hold matters most. The wedge lip grips the metal beneath and locks the head tight without exotic tools.

✅ Inside diameter ranges from 8.7 millimeters to 21.4 millimeters across five standard cuts
✅ Outside width spans 13.5 millimeters up to 30.7 millimeters for broad fastener coverage
✅ Plate thickness holds steady at 2.5 millimeters for light threads and steps up to 3.4 millimeters for heavier bolts

💡 Why choose mechanical wedge lock plates over simple nylon insert nuts for high vibration automotive jobs
I think you will find these copper inserts plenty handy for tough rig builds because they lock fast without chemical curing messes.
- The hardened split ring design bites hard into steel flanges to stop bolt rotation when hit by road shock
- Custom metric sizing matches common truck bed rails and workshop jacks so you can grab them right out of your drawer
- Thin profile sits flush under heads and avoids rattling loose parts that cause premature bearing wear