Bend the tab of these lock washers against the flats of a hex nut or bolt head to prevent the fastener and washer from turning and loosening.
Tab lock washer.
Tab lock washers are available in the following materials and finishes.
Tab lock washers are designed to prevent both the washer and the nut from rotating in an assembly.
It can have internal or external teeth for gripping and can be split through one part of the ring.
Split star and tab lock washers are commonly used in airplane manufacturing.
A lock washer is designed to prevent a secured joint that is fastened with a bolt or screw from turning or loosening in response to shock or vibration.
The tabs lock over the edge of the assembly base or in a predrilled hole.
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The ears are bent up by the user to lock the nut in place.
Teeth bite into the joint for a tighter grip than split lock washers.