2 Pack Clock Mechanism Battery Powered Kit, Silent Quartz Clock Movement Replace

Total shaft 20mm (0.79")/thread 12mm (0.47") for 7-9mm thickness (0.28-0.35") panels; total shaft 16.5mm (0.65")/thread 8.1mm (0.32") for 3-4mm (0.12-0.16") panels. Battery Not Included.

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