Abstract: The invention relates to a T-nut insertion method and an apparatus of the type for driving T-nuts into e.g. a wooden work piece with predrilled holes. A T-nut strip with improved and controllable rupture characteristics is also disclosed. Finally, embodiments of T-nuts with T-nut strip cutting protrusions or shapes are also disclosed. By applying the method according to the invention, a safe and precise insertion of T-nuts is obtained without the risk of T-nuts accidentally being driven from the apparatus and without the risk of the T-nuts being driven into the work piece at locations beside the predrilled holes.