Made of 304 stainless steel material, good corrosion resistance.Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection.A Lock washer exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate.
Specifications: Washer Type: External Star Washer Size:Silver Tone M12. Material: 304 Stainless Steel. Package Included: 50Pcs x External Tooth Star Lock .