| 摘要 |
The present invention relates to mechanical fixing elements. It relates in particular to a fixing element such as a screw of the type comprising a shank 1 equipped at one of its ends with a helical thread 2 and at the other end with a head 3, having a hollow housing 4 intended to receive the active end of a tool enabling the fixing element to pivot about its longitudinal axis for its tightening or untightening. It applies particularly to a slotted screw. <IMAGE>
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