Description
Outer Diameter (mm): 40
Inner Diameter (mm): 21
Thickness (mm): 4
Weight (g): 28
Hardness HRC: 30 to 35
Material: Steel (S45C), Black Oxide Finish, Tempered
Application: For securing workpieces on milling machines, machining centers, and radial drills. Prevents scratches on clamping.
Trusco Product Number: 398-7272
Compatible Bolt: Diameter M20
Eliminates scratches and instability caused by direct tightening of nuts. Easy to tighten.
