Hermle Clock Hand Nut Black 3 Pieces Mechanical Grandfather Movement 3/8"

3 piece hand nuts to fit a Hermle mechanical grandfather clock movement. This fits a grandfather clock movement that winds up by pulling chains or by winding with a key or crank. 10 mm (about 3/8") diameter is the correct size for grandfather / grandmother / floor clock movements. Correct thread size for all Hermle movements. Black color. Made in Germany. THIS HAND NUT WILL NOT FIT A BATTERY POWERED CLOCK MOVEMENT. You will receive 3 identical hand nuts with this purchase.