Bolt with anti-rotation function
The utility model relates to a bolt with an anti-rotation function. Screw and head, external threads are arranged on the periphery of the screw rod; the head part is fixedly arranged at one axial endof the screw rod; a locking rail and a driving rail are arranged in the screw rod; the track directio...
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Format: | Patent |
Sprache: | chi ; eng |
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