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RS PRO
Copper Crinkle Locking & Anti-Vibration Washer, M2.5, BS 4463
Part: 289-641
Copper crinkle locking washer for M2.5 bolts, prevents vibration loosening.
RS PRO
A2 304 Stainless Steel Crinkle Locking & Anti-Vibration Washer, M2.5, BS 4463
Part: 428-622
Small stainless steel locking washer prevents bolt loosening from vibration.