Clock Making › EXTENSION NUT Image 1 of 3 Image 2 of 3 Image 3 of 3 EXTENSION NUT $0.55 Code: ENUT7 Add To Cart Added! Code: ENUT7 7mm high, 10mm across the flats. For thicker material. You Might Also Like Quick View CLOCK MOVEMENT - REVERSE MOVEMENT $7.40 Quick View CLOCK MOVEMENT - PENDULUM MOVEMENT $16.55 Quick View CLOCK MOVEMENT - PENDULUM OPERATOR $8.10 Quick View SWEEP WEEK QUARTZ CLOCK MOVEMENT $19.50 Quick View CLOCK MOVEMENT - LONG SHAFT $13.20