2x2 Sealed Bass Tuning Pegs, Black

2 Per Side Set of Bass Sealed Machine Head, Black The outside diameter of the sleeve that fits into the head stock is 13.5 mm- 1/2 inch. The shaft length from the outside of the gear housing is 30 mm- 1-3/16 inch the gear housing is identical to Grover and Ibanez bass tuners. The mounting screw hole for the wood screw is 3/8 inch from the center of the shaft. Tuners Nut, Ferrule, Screws are included.