| 摘要 |
A screw having a threaded shaft, a head on the shaft and means to permit rotation of the screw. There is a longitudinal slot extending along at least a portion of the threaded shaft to receive a locking member. The invention has a particular application in a wood screw and the locking member is, preferably, a flat body having a sharpen tip. Using the invention a wood screw may be secured against vandalism.
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