Item number 2340178,
Our nickel plated hammered dulcimer/zither tuning pins are designed to be used for hammered dulcimers, bowed psalteries, autoharps, and other similar instruments. Each pin is 3/16" in diameter and 1 9/16" long.
You'll want to use a #13 (wire gauge) drill bit when you install these pins. This is an unusual size, and we keep these bits in stock here.