| 摘要 |
The method of tensioning a nut engaging bolt comprising the steps of placing a first indexing mark in a visible location on the bolt, then, on a non-moving member which is juxtapositioned with respect to the bolt as the bolt is tensioned for joining two members together, placing a second indexing mark at a predetermined location on said non-moving member, at which location said second indexing mark is aligned with said first indexing mark when the bolt has been properly tensioned. Finally, the bolt is rotated while retaining the nut stationary for a predetermined number of complete rotations of the bolt, and a further fractional rotation sufficient to bring said first and second index marks into alignment.
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