This C24T servo shaft is the little brother to the ½" servo shaft found in a ServoBlock®. The ⅜" ID provides area to support the shaft with a ball bearing or pillow block. To fasten a component to the end, simply use a ⅜" clamping hub. A clamping hub is a reliable means of fastening that does not mar the shaft. It’s easily adjustable, and can be removed by loosening a single pinch-bolt. The counterbored center of the shaft allows the stock servo screw to fit down inside and hold the shaft onto the servo that’s driving it.