4x silent block rubber buffer M6 M8 vibration damper threaded metal bumpers [Excellent shock absorption effect]: Made from natural rubber with high elasticity and strength, providing effective shock absorption and cushioning to help protect machinery. [Improved work safety]: The rubber and metal components are bonded using a reliable process, helping prevent loosening, extending service life, and enhancing operational safety. [Easy to install]: Features external or internal threading for simple installation and removal, improving efficiency; available in M6 and M8 sizes. [Performance and stability]: Precision craftsmanship ensures strong threading and secure fixation; the simple geometric design supports stable performance under lateral loads. [Application]: This rubber anti-vibration silent block is designed for use in air compressors, water pumps, refrigerators, grinders, diesel engines, gasoline engines, and other mechanical equipment to reduce vibration and noise. Specification: Material: Rubber Thread: M6 / M8 M6: Rubber part 20 x 15 mm, thread length 18 mm M8: Rubber part 30 x 20 mm, thread length 23 mm Package includes: 4x rubber buffer