Epi Thunderbird Classic-IV Pro - Nut Replacement (Tusq)

Discussion in 'Hardware, Setup & Repair [BG]' started by ColdAsThe Snow, Jun 6, 2019.

  1. ColdAsThe Snow

    ColdAsThe Snow

    Oct 11, 2011
    Hi all,

    I'm looking for a tusq nut for my Thunderbird Classic-IV Pro. I can't find an exact match of the measurements online... anyone know the best one to go with? Can't be that uncommon a thing, surely? The nut on mine is pretty grim.

    The measurements I've taken are:
    Length: 1.5 in / 38.1mm
    Width: 0.19in / 5mm
    Height: 0.37in / 9.5mm
    E-G: 1.14 in / 29mm

    The closest I've found thats slotted is:
    GraphTech PQ-1254-00 Tusq Nut - Slotted Bass 4 String | Rich Tone Music

    Width obviously worries me here... basically, it's not right.


    Last edited: Jun 6, 2019
  2. ColdAsThe Snow

    ColdAsThe Snow

    Oct 11, 2011
    For anyone that might find this via google or whatever later with the same problem, my local tech recommended going with a Tusq XL PQL-4000-00 and shaping it to fit.
  3. Pretty much any nut you buy aftermarket will still have to be fitted. Even if it fits in the neck slot perfectly, chances are it'll be cut very high and you'll need to file the string slots down.
    JLS likes this.
  4. ColdAsThe Snow

    ColdAsThe Snow

    Oct 11, 2011
    Yep agreed - problem here was most things were too small rather than me looking for a perfect fit. I could do some minor filing and trimming it down myself, but cutting new slots and reshaping I'll leave to someone with more experience and better tools.

  5. Ah, I see. If there is a decent luthier or tech in your area, they should be able to handle it. Stew Mac sells a nut file set. It's really easy to do. But, the whole set will run you about $160.
  6. SculptorMike


    Jun 30, 2020
    Thank you! This was really helpful. I just added a Kahler tremolo and need a slippery nut to help with intonation.