Trim fastening especially for motor vehicles

The fastening system for body trim on a lorry comprises a plug which is inserted through a bore (3) in the bodywork (4) and which has a foot section which is spread by a peg (5) inserted through a bore (7) in its head (10). The head has a sloping recess (12) on one side of the bore and the peg has a notch (13) near the top. This allows a tool to be used to remove the fastener at a later stage.