A tuner for a stringed instrument including a base unit, a pair of projections extending upwardly from the base unit, and a clamping bar for attachment to the base unit with a neck of the stringed instrument therebetween. The tuner also includes tuning screws for moving the projections linearly to change string tension, and a pair of externally threaded posts extending from a bottom surface of the base unit, and a pair of nuts to secure the tuner onto the stringed instrument.