Seven Eighths Inch Internal Tooth Lock Washers, Zinc Plated Steel, Built Tough For Secure Fastening, ASME B18.21.1 Compliant, Rockwell C40-C50, Bulk Pack Of 2000

7/8 Inch Internal Tooth Lock Washer in Zinc Plated Steel
✔️ 7/8 in internal tooth washer, zinc plated steel, ASME B18.21.1

Internal tooth lock washers bite into the bolt surface and resist loosening from vibration, making them ideal for automotive, machinery, and industrial assemblies where secure fastening matters.

✅ 7/8 inch internal tooth lock washer size
✅ Zinc plating for corrosion resistance
✅ ASME B18.21.1 compliant standard
✅ Rockwell hardness C40-C50 for durability
✅ Bulk pack of 2000 units for bulk purchases

💡 What is an internal tooth lock washer used for in fastener assemblies?

This handy piece helps secure fasteners against loosening and vibration. - handy for securing fasteners in vibration-prone equipment - ideal for automotive and industrial uses where locking matters - provides spring-like tooth engagement to bite into bolt and surface ✝️