Graph Tech PT-6642-00 Black TUSQ XL Nut

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Black TUSQ XL Nut for 6-String Acoustic and Electric Guitars

Right-handed version
Made of Black TUSQ
Pre-scored
Flat bottom
PTFE impregnation improves tuning stability and string life
Balanced sound with increased overtone content
String spacing E to E: 34.26 mm (1.349")
Dimensions (L x W x H): 42.05 x 6 x 7.69 mm (1.656" x 0.236" x 0.302")
Colour: Black

Note: All Graph Tech nuts and saddles are slightly longer and wider to ensure a perfect fit on the instrument. Excess material can easily be removed with fine sandpaper.

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Available since November 2021
Item number 530674
Sales Unit 1 piece(s)
Width in mm 42 mm
Unmachined No
Instrument E-Guitar, Western Guitar

46,60 AED 10,84 €

The price in AED is a guideline price only

Since we ship from Germany, additional costs through taxes and customs may be incurred

Sales Rank

in Guitar/Bass Saddles & Nuts

56 Customer ratings

5 49 Customers 4 4 Customers 3 0 Customers 2 1 Customer 1 2 Customers

4.7 / 5

quality

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38 Reviews

Fits almost perfectly for harley benton HWY-25BKS

anotherharleybentonfan 08.07.2022

So I wanted to replace the plastic nut on my HB HWY-25BKS which is a beast of a machine. I learned from this experience that not all guitar nuts are made the same. The nut on the HWY is quite a bit bigger on the bottom (around 1.5mm I'd say) compared to this Graphtech one. So I had to use a bunch of wood glue at the bottom to artificially boost the height. Then comes in this nut, which fits perfectly width-wise. The only thing I haven't learned yet is if this nut is meant for a 12 inch fretboard radius like some other nuts, or not (maybe nuts don't even need to care about fretboard radius). I have mostly set up mine based on eye-feel so i dont know if this fits perfectly for a 14-inch radius originally.

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Smooth Tuning and Reliable Performance

rewox 01.05.2026

The Graph Tech PT-6642-00 Black TUSQ XL is an excellent upgrade for any guitar nut replacement.

The self-lubricating TUSQ XL material really makes a difference in tuning stability. Once installed and properly set up, the guitar stays in tune much better, especially when using tremolo or frequent string bending. Friction points are noticeably reduced, which helps eliminate binding at the nut.

The pre-slotted design makes installation easier and saves a lot of time, especially for setups where precision is important. The fit is generally very good and only minimal adjustment is needed in most cases.

Tonally, it keeps the sound consistent and balanced, with no loss of sustain or brightness compared to traditional materials. It feels like a professional-quality upgrade that improves reliability without changing the character of the instrument.

Highly recommended for anyone looking to improve tuning stability and overall performance.

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Top quality from Tusq

Beef 28.11.2022

Had previously used these without any issues. Easy to sand for a perfect fit.

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Perfect upgrade for my Harley Benton self-build single cut.

Andy Fereday 03.01.2024

I wanted to change the nut on my self-build guitar. I had ruined the one that came with the guitar by filing one slot too deep. I was worried about changing the nut as all the youtube and self-build forums advise it is a difficult task.

I actually bought two of these as I wanted a reserve in case I damaged the first installation but as it turned out, I didn't need the second. It fit the slot perfectly. Only a small amount of adjustment was needed for the string slots and it has improved the intonation immeasurably. All-in-all I'm very happy.

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Graph Tech PT-6642-00 Black TUSQ XL Nut

Black TUSQ XL Nut for 6-String Acoustic and Electric Guitars

56 Customer ratings

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38 Reviews

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Graph Tech PT-6642-00 Black TUSQ XL Nut

Black TUSQ XL Nut for 6-String Acoustic and Electric Guitars

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56 Customer ratings

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38 Reviews

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