Mini Quartz Clock Movement "AA" Motor Kit with Hands 7/16" Total Shaft Post Length Mini Quartz AA Clock Movement Kit with hands and mounting hardware Total shaft length is 7/16", threaded portion is 1/4" in length and 5/16" in diameter Movement body measures 2 1/4"W x 2 1/4"H x 5/8"D Hour hand shaft measures about 13/64" (5.0mm) in diameter Minute "I" hand shaft diameter measures about 1/8" (3.3mm) x 7/64" (2.65mm)