M10 External Tooth Serrated Lock Washer Made From 304 Stainless Steel 50 Pieces Heavy Duty Rust Resistant Indoor Outdoor Use High Hardness No Deformation Keeps Fasteners Tight And Secure

M10 304 Stainless External Tooth Lock Washer - 50 Pack
✔️ 304 stainless steel, M10 size, external serrated teeth, rustproof

These M10 external tooth serrated lock washers are built from high-grade 304 stainless steel, delivering strong rust resistance for indoor, outdoor, and humid environments. They are ideal for securing threaded connections in automotive, marine, and general appliance assemblies.

✅ Size: inner diameter 3/8 in (10 mm), outer diameter 11/16 in (18 mm)
✅ Material: 304 stainless steel for corrosion resistance
✅ Pack: 50 pieces per package
✅ Application: suitable for threaded bolt connections in appliances, automotive, and marine hardware

💡 What is a lock washer with external teeth used for in mechanical assemblies? A handy, general-purpose part that helps keep fasteners tight during operation.

- Improves bolt grip on metal and plastic - Helps prevent loosening from vibration in machinery - Suitable for indoor and outdoor environments - Maintains load distribution and lock integrity over time