12H220L - Sealing Washer -
$4.84
$6.05
Serrated Washer with a 3/8″ bore, a serrated locking (shakeproof) washer.
Fitted beneath a bolt head or nut, the serrated teeth bite into both the fastener and the joint face to grip the assembly and resist loosening caused by vibration. Used as a general-purpose locking fixing across a wide range of fastening applications.
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