Internal Tooth Lock Washer Set Stainless Steel 70 Pack For Screws From Four To One Half Inch Locks And Tensions With Corrosion Resistant Finish For Heavy Duty Machinery And Assembly

Stainless Steel Internal Tooth Lock Washer Set, 70-Pack
✔️ 70-piece stainless set for #4 to 1/2 inch screws, corrosion resistant

Internal tooth lock washers are hardened circular washers with inward teeth that bite into the mating surface to resist loosening from vibration and moisture. This 70-piece stainless steel set covers screw sizes from #4 to 1/2 inch and includes both internal and external variants, all with a corrosion-resistant finish. This pairing makes them a solid choice for heavy-duty machinery and assembly lines where reliable fastener retention matters.

✅ 70 pieces per retail package
✅ Covers screws from #4 to 1/2 inch in size
✅ Stainless steel with corrosion-resistant finish
✅ Includes both internal and external variants

💡 What is an internal tooth lock washer and why use it in assemblies?

A handy explanation of how they work and why they're used in real setups. - Locks with inward teeth bite into the metal to resist loosening - Handy for high-vibration equipment and heavy-duty assemblies - Stainless steel versions outlast cheaper finishes - Works with screws from #4 to 1/2 inch