Standard Size and thread, solid brass with an attractive polished chrome finish. Best product for turning anything into a new beer tap handle. Precision drilled at 3/8"-16, standard beer tap thread for a universal fit on any American kegerator, bar tap or faucet. Replaces a broken or old looking tap handle ferrule to make your expensive beer tap handle look like new. Ferrules are 1" tall and Hanger bolts are 5/16"-18 X 1 1/2" to fit the top of the ferrule Sets of individually wrapped (to prevent scratching each other in shipment) polished chrome plated heavy brass ferrules with 1 1/2" long 5/16-18 hanger bolts to make your own custom beer tap handles. Longer hanger bolts are more difficult to work with so we choose harder to find 1 1/2" bolts for your ease in installation. Ferrules have 5/16-18 thread on top (to match hanger bolts) and 3/8-16 standard beer faucet thread on bottom.