Heavy Duty 7/8 Inch Internal Tooth Lock Washers Made From Zinc Plated Steel To Keep Bolts Locked Down During Heavy Lifting Great For Soft Materials And Electrical Bonding A Damn Good 2000 Piece Set That Delivers Serious Value With Zero Slippage
✔️ 2000pc zinc plated steel provides solid clamping torque
These heavy duty lock washers feature twisted internal teeth that bite into softer mating surfaces like aluminum panels, plastic housings, and wood frames. They stop vibration from working bolts loose during high stress mechanical assemblies and vehicle repairs.
✅ Nominal diameter measures 0.875 inch with a tolerance window from 0.894 to 0.927 inch inside clearance✅ Outside width spans between 1.364 and 1.41 inch while maintaining a 0.052 to 0.060 inch plate thickness
✅ Heat treated carbon spring steel reaches Rockwell C40 to C50 hardness resistance for repeated compression cycles
✅ Complies with ASME B18.21.1 standards and includes a clear zinc coating to fight surface corrosion easily
💡 How do internal tooth lock washers prevent bolts from backing out?
The biting geometry gives you a handy setup for keeping threaded hardware dead nuts secure on vibrating platforms. The sharp ridges dig right into the base material to kill rotational slippage completely.
- internal tooth engagement locks hardware against shear forces reliably
- spring steel construction maintains constant axial seating pressure permanently
- zinc plating creates an electrically conductive path for reliable system grounding safely