Catalogue number: B20-0004 Features: ●The seat and threaded part are sealed with rubber when fastened, providing a high sealing effect. ●The vibration absorption properties of rubber provide a high level of anti-loosening effect. ●The rubber comes into contact with the object to be fastened, providing sound absorption and insulation effects, and also making it less likely to scratch the seat. Specifications: ●Nominal diameter: M4 ●Outer diameter (mm): 9.5 ●Inner diameter (mm): 5.0 ●Thickness (mm): 2.7 ●Package: Bolt-on pack (blister) Material/Finish: ●Stainless steel (SUS304) ●Neoprene rubber
