Description:
Good Solution: A Lock washer 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

Specification:
-Product Name: Starlock Washers
- Color: Black
- Package: 200 Pcs
- Material: 65Mn metal steel
- Type: Internal Tooth Starlock Washers
- Size: M3, M4, M5, M6, M8, M10, M12
- Application: Used in machinery equipment, industrial production of shock absorption and insulation

Package:
1. M3 x 10---->40 pcs
2. M4 x 12---->30 pcs
3. M5 x 14---->30 pcs
4. M6 x 16---->30 pcs
5. M8 x 18---->30 pcs
6. M10 x 21---->20 pcs
7. M12 x 25---->20 pcs
8. 1 pc transparent storage box

Satisfaction guarantee:
We stand by the quality of our product and guarantee you will love our product. Please do not hesitate to contact us in the first time if there is any question.We will do our very best to meet your request and solve your problem quickly and efficiently!

Warning: the product are small parts, keep away from children and kids.