Multi-Purpose Nut – GM (94515321)

The multi-purpose nut here is the GM part, numbered 94515321. It is catalogued under Nuts & Washers > Nuts.

• Washers used under aluminium or plastic are usually larger in outside diameter to spread load, and a standard washer will dish the surface.
• Genuine parts are made to the drawing the vehicle was built from, so dimensions and materials match the part being removed rather than being close to it.
• The number stamped on the old part is the only reliable identifier, since two parts can look identical and differ by a millimetre or by rotation direction.

Where a nut is also a sealing element, as on a fluid line, the thread form is part of the seal rather than a fastening detail. Flange nuts distribute clamping load without a washer, so a plain nut at the same torque will mark the component.

Confirm the number before you order, because a near match will bolt on and still be wrong. Send the VIN if the old marking has gone. In stock and sent from the US in one to two business days, free delivery over $59.