Dusty Strings Manufacturing / Harps / Hardware / Threaded Tuning Pins

Threaded Tuning Pins

threaded harp tuning pin

Note: We have recently learned that our supplier of 20+ years will no longer be making our threaded tuning pins. We are not sure how long it will take us to transition to a new supplier, and we regret to say that we will be suspending sales of tuning pins until we know more. We apologize for any inconvenience, and invite you to call us if you have questions or concerns.


Temporarily Out of Stock

Bulk Price: $1.40 ea for 100+ (applied in shopping cart)

If you are interested in ordering larger quantities, please give us a call.

Dusty Strings threaded tuning pins combine the style and usability of taper pins with the proven reliability of piano tuning mechanics. Unlike tapered tuning pins, threaded pins won't work loose or require resetting. Harp players appreciate the smooth turning and greater control of threaded pins. Harp builders appreciate the easy installation - threaded pins press smoothly and quickly into place with an arbor press, making it easy to achieve uniform alignment. Threaded pins should not be spun in with a drill.

Advise harp owners to back out the tuning pin 4 turns when changing strings, just as they would with a zither pin.


  • 3" long
  • .250" diameter at threads
  • 5/64" through hole
  • Square tip .176" across flats
  • Black oxide finish

Drill bits:

Threaded tuning pins are .250" in diameter at the threads, so you'll need various undersize drill bits, depending on your wood species. Before drilling your harp's neck, do a sizing test in a scrap piece of wood. The test will determine the best fit with the wood species you are using. The harder the wood, the larger the hole needed. The fit should be firm, but not too tight to turn the pin.

Try .246" for maple, sapele and bubinga, .244" for walnut and .242" for mahogany.