Air Compressor Pump Anti Vibration Rubber Mount Shock Damper M10 40*30 Features: Mainly used for air compressors, diesel engines, gasoline engines, water pumps. As a damping element for welding machine and other equipment. Protect the body's normal work and get good surroundings, damping noise reduction and the effect is obvious. In the radio equipment, instruments, instrument, protect machine vibration interference , have a good buffer. Specially designed for vibration and noise control. Simple geometrical design supports dynamic performance and stability under lateral (sideways) forces. Extremely durable metal bonded rubber part. Specification: Condition: Screw Diameter: Approx. 10mm/0.39in Screw Height: Approx. 25mm/0.98inShock Damper Diameter: Approx. 40mm/1.57inShock Damper Height: Approx. 30mm/1.18in Package included: 4 x Rubber mounts