Catalog number: 20M-SW Features: ●Even if the clamp is tilted, it can be tightened with a nut. Uses: ●Buffer between clamp and nut. Specifications: ●Compatible bolt: M20 ●Outer diameter (mm): 40 ●Inner diameter (mm): 21 ●Height (mm): 12.0 Material/Finish: ●Steel (S45C) ●Treatment: Hardening (HRC30-35), black dye finish ●Sequentially changing to S45CF Caution: ●If it hits against black leather, it will be scratched. ●Set it between the clamp and the nut.
