SWF-10 NBK High Intensity Flat Washers Black Main body SCM435‹¬?Hardness 350-430 HV‹¬?Ferrosoferric Oxide Coating‹¬?Black‹¬? Pack of One Washer NBK - Made in Japan
Characteristics:
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.