Made from high quality EPDM with an internal Brass Insert, the RubberNut Series are ideal for applications where a reduction in vibration and noise transmission is desirable. Installed from one side without the requirement for special tooling, RubberNuts absorb vibration due to high elasticity and are available in short and long grip ranges. Widely used in the Automotive and Marine industry, once installed a watertight seal is produced with no electrical conductivity and can be easily removed. RubberNut inserts are also known as Well Nuts or Rawl Nuts