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.
Tab lock washer.
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.
Split star and tab lock washers are commonly used in airplane manufacturing.
They work to lock a part in place and are most often used in applications where there are drastic heat conditions or heavy vibrations.
Teeth bite into the joint for a tighter grip than split lock washers.
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The tabs lock over the edge of the assembly base or in a predrilled hole.
Tab lock washers are a type of round lock washer that are generally manufactured with tabs or notches that are designed to fit around bolts and nuts or made to lay flat.
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.