Screw Grommets are generally used for mounting trims and parts to metal vehicle bodies. The screw grommet fits into the metal bodywork and allows for a part or panel to be fixed to the vehicle. The screw grommet means that the screw doesn’t have to pass directly into the metal bodywork, offering more flexibility and protection from the elements.

Screw grommets are also referred to as expansion nuts, lock nuts, plasnuts and captive nuts.