ZS-13 Slotted Replacement Nut for Classical Guitars

$39.99

Material

Slots

The Zero Glide Replacement Nut System borrows the "zero fret" concept to reduce string contact in the nut by up to 93%, increasing tuning stability, playability, and open string tone. It only takes a few minutes to install with absolutely no permanent alteration to your instrument. For Classical Guitar.

See the Classical Guitar DelCamp review of the Classical Zero Glide nut.

Also available in Black Delrin.

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See sizing guide for correct fit.
  • Length: 52.5mm (2-1/16")
  • Radius: FLAT
  • Production Height: 11.0mm (7/16")
  • End Height: 11.0mm (7/16")
  • Fingerboard: 8mm (5/16")
  • Thickness: 5.4mm (7/32")
  • Fret Sizes: L, M, H, J (.035", .039", .043", .051")
  • String Spacing: 43.3mm (1-45/64")
  • String Gauges: .048", .038", .032", .044", .036", .032"
ZS-13 Slotted Replacement Nut for Classical Guitars
*Measurements in mm
Convert to inches

Reviews

Zero Glide Query

Jun 23, 2025
I have a BC-350 banjo with the zero glide nut. It has been problem-free but I'm curious how this is an improvement over the zero nut found on budget European guitars since practically the beginning of time. I repaired instruments for decades and always regarded the zero fret as a marker of an inferior mass-produced instrument. No criticism of the Gold Tone zero glide is in any way implied here but I am confused.
CHRIS Battis
Zero Glide Nut

Sep 9, 2015

Great product, Makes a lot of difference in sound and play ability. To say nothing of staying in tune. I put one on a Ovation Legend made in 1972. The guitar always sounded good but was a little tough to play. This made a world of difference. It is now amazing. I have a friend who can't keep his hands off of it. He likes it better than his Rainsong.

PCK from Review pulled from Amazons Zero Glide Product Page
Bought 2

Jun 27, 2016

One for Fender Telecaster, the other for Breedlove acoustic. Both of these guitars are top 10 instruments. The Zero Glide nut improvement came through as described on Youtube demos. So much better string action (lower with out any fret buzz) Clarity in open string tone chords and pulloff plucking, faster tuning to pitch, using electronic tuner, remaining in pitch once strings stretch has settled in. I took my time to install on both guitars about 2 hours for each instrument. Have new custom Guitar that I will 99% sure I will add this improvement to soon. I see this becoming a standard upgrade to many popular manufactures. Lastly the sustain in open chords on all strings cant be described.

Juanito from Review pulled from Stew Macs Zero Glide Product Page
martin nut

Nov 4, 2023
Now that I have it setup I love it. The kits should have all available nut wires in it. I had to special order the largest wire for my Martin Dred kit because the included were too small.
Ken Fuehrer Review pulled from Stew Macs Zero Glide Product Page
What sorcery is this ?

Jun 3, 2018

Just put one of these on an old beater of a cheap strat-clone kit that I use to experiment with "creative" wiring. Suddenly its in tune up and down the neck and stays that way after using the trem as well. It cost half the price of the kit but it has significantly improved the value of the instrument to me. It required a little sanding of the back of the nut but nothing drastic. I dont have many dedicated luthier tools so the fret wire is not trimmed perfectly (but the look is in keeping with the overall "relic'd" appearance of the guitar). The question now becomes can I get a discount if I order these in bulk?

Dean from Review pulled from Stew Macs Zero Glide Product Page

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