NL8 - M8 8.7mm 13.5mm 2.5mm. NL20 - M20 21.4mm 30.7mm 3.4mm. to vibration or dynamic loads. wedge-locking products positively lock the fastener in a joint which is subjected. The system comprises of a pair of lock washers that has cams on one side and radial teeth on the opposite side.
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