Abstract: A bundle tie or strap has a locking device provided with a through-going channel, in which locking device there is secured an elongate strip. The strip and the channel have counterdirected teeth, whereby the strip is insertable in the channel but not withdrawable therefrom. For infeed of the strip in the channel and for tightening, there is pivotally connected to the locking device a feeder crank with teeth on a circle sector shaped portion. The bundle tie is manufactured in its entirety in the opened state by injection moulding in one single continuous piece.