M4-M10 304 Stainless Steel External Serrated Lock Washer&Internal Serrated Lock Washer &Split Lock Washer Assortment Set for Electrical Connections on Household Commercial 570Pcs
- Internal Tooth Lock Washer Star exerts a spring force between the fasteners head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation..
- Made of high quality 304 stainless steel environmentally friendly material, with high strength (not easy to deformation), great wear resistance and corrosion resistance, and have excellent rust resistance and oxidation resistance..
- Set of 410 pcs, including the most commonly used 8 sizes: M2: 60 pcs / M2.5:40pcs / M3: 60 pcs / M4: 55 pcs / M5: 60 pcs / M6: 55 pcs / M8: 55 pcs / M10: 50 pcs.
- Widely used in various occasions of screw fastening, perfect for electrical connections on household and commercial appliances, automotive and marine uses..
- The tooth star lock washers are packed in a transparent storage box, easy to storage and organize, allowing you to keep these gaskets for a long time..