|Main Body||SCM435（Hardness 350-430 HV）
Ferrosoferric Oxide Coating（Black）
ApplicationPrevention of bearing surface sinking and loosening
- Flat washers for high intensity screws.
- The surface area is twice or more of that of standard washers. Washers eliminate bolt looseness by preventing the sinking of the bearing surface.
- For the connection of materials with low limits for bearing surface pressure such as aluminum and plastic.