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Revision history of "File:Theft-proof hex key screw with insert.JPG"

From energypedia

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  • curprev 16:56, 24 August 2011‎ ***** ***** *****‎ m 718 bytes +413‎
  • curprev 15:36, 24 August 2011‎ ***** ***** *****‎ m 305 bytes +45‎
  • curprev 13:34, 9 February 2011‎ ***** ***** *****‎ 260 bytes +260‎ The image shows a type of theft-proof screw. A small ball is hammered into the hex key after fastening. This ball cannot be removed and the screw can thus no longer be unfastened. Photo taken in Sine Moussa Abdou, Senegal, by Gunnar Wegner [[Category:Sene
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