WASHER - LOCK (Hyundai HN4E7)

HN4E7: A damaged lock washer can allow threaded fasteners to loosen under vibration. During assembly, a lock washer's split or toothed design resists rotational loosening. Hyundai catalog reference HN4E7 identifies this aftermarket replacement part. The washer's plain mechanical function is to create tension between the fastener head and the mating surface. A concrete generic failure consequence is that a missing or worn lock washer may lead to fastener back-out and joint separation. Keeping a lock washer in sound condition helps maintain clamping force in bolted connections. Verify the serial number or application, then call (562) 693-7748. This item ships at approximately 0.012 POUNDS.

Part number variants: HN4E7, hn4e7