| 摘要 |
A theft deterrent device for threaded fitting to a threaded member or threaded opening. The device comprises a first part (10) having a threaded portion (11) with a second part (14) rotatably mounted with the first part. The first part has a tool engagement surface (13). The tool engagement surface (13) and/or at least a portion of the second part (14) is constructed such that only a specially configured tool is locatable therewith so as to engage with the tool engagement surface (13) and be able to apply a torque to the first part (10) via the tool engagement surface so as to remove the fastening from threaded engagement in or on an item. The device may replace a spark plug in a portable petrol-engined machine, or alternatively, it can replace a wheel nut/bold used to secure a wheel to a motor vehicle. |
