| 摘要 |
The invention describes a retainer (1, 3) for limiting the rotational movement of a polygonal bolt part (20, 21, 22) during tightening of a bolt (2), which bolt part (20, 21, 22) comprises a bolthead or a nut, which retainer (1, 3) comprises a cavity (10, 30) dimensioned to accommodate the bolt part (20, 21, 22), which cavity (10, 30) is characterized by side walls comprising a number of crests (11, 31) extending into the cavity (10, 30) and corresponding to side faces of the bolt part (20, 21, 22) such that the rotational movement of the bolt part (20, 21, 22) positioned in the cavity (10, 30) is limited by contact made between at least one side face of the bolt part (20, 21, 22) and a corresponding crest (11, 31) of the cavity (10, 30). The invention also describes a method of limiting the rotational movement of a polygonal bolt part (20, 21, 22) during tightening of a bolt (2), a method of manufacturing such a retainer, and the use of such a retainer.
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