Abstract: A positive locking device for mounting to lightweight structures and doors, such as found in mobile homes, wherein the device comprises a bar-locking assembly which is mounted to a door, and includes a bar-receiving frame section generally mounted to a fixed structure associated with the door to be locked. The bar locking assembly includes a mounting plate having a sleeve to slidably receive an elongated bar therethrough, the bar including a longitudinal adjustable head member and a plurality of aligned holes to receive separate locking devices, whereby the bar is locked from longitudinal movement after the bar is received in the bar-receiving frame member.