Front Hub Bolt - Use Only With 21A-1125 (Brake Drum) - Straight Sided - .56 X 1.74 Overall Length With 1/2 X 20 Threads- Ford

The front & back stud are now interchangeable, as per the manufacturer. If original stock steel wheels are being used, you may need to use A1012WS on the rear drums, as the length of the shoulder of the stud may bottom out before it is properly tightened.

If using new or wire wheels, there is no need for the cup washer.

These are no swedge style hub bolts.