Teeth bite into the joint for a tighter grip than split lock washers.
Tab lock washer.
Tab lock washers are designed to prevent both the washer and the nut from rotating in an assembly.
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Tab lock washers are available in the following materials and finishes.
They work to lock a part in place and are most often used in applications where there are drastic heat conditions or heavy vibrations.
Split star and tab lock washers are commonly used in airplane manufacturing.
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.
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.
The ears are bent up by the user to lock the nut in place.