Our standard uke and violin peg is 1.83” (46.5mm) long and the outside diameter of the thread tapers from approximately .310” to .330” (8mm). They are designed to thread into a 5/16” (.312” to .315”) diameter tapered hole. Pegheds sets include both right and left hand threads. The right hand thread is for the bass side (strings 3-C and 4-G), and the left hand thread is for the treble side (strings 1-A and 2-E). They should thread into the neck in the direction that lowers the pitch of the string.

Our Pegheds will fit the existing .315” dia. peg hole in the Fluke and Flea ukuleles. Mounted in the existing hole, the pegs will protrude about 1.10” (28mm). Deeper installation is possible by counter boring with a .323” dia. (letter size P or about 8.2mm) drill no more then .120” (3mm) deep. The hole can also be reamed or filed to a slight taper for a better fit. This will open up the outside of the hole slightly to allow the peg to thread in deeper.

A medium or high viscosity (toughened) super glue works best. Check the fit by screwing the peg in gently and removing it. The dry fit lightly threaded in will be close to the final installation depth. Apply glue to the thread and screw in carefully but quickly.

Do not use pliers for installation - the body is thin anodized aluminum that scratches easily. Do not use the knob as a handle when tightening. Grasp the shank with a piece of rubber or leather to improve grip. There is no need to over tighten, just screw in until the taper binds in the mounting hole, and the glue sets.

The internal mechanism is designed to brake more fully when the pegs are lightly pressed in while rotating, and turn more freely while the peg head is gently pulled outwards. This allows adjustment of the friction and braking force. If the peg is jammed tight, a drop of mineral spirits where the shaft enters the housing will help loosen it up.