How to Install a Fender LSR Roller Nut

Updated June 09, 2017

The Fender LSR roller nut is a guitar nut that uses ball bearings to reduce the friction the nut has on the guitar strings. Using the tremolo bridge on a guitar can occasionally cause the strings to bind on the nut. This means the friction of the nut on the string prevents it from returning to the correct position after the tremolo bar on the bridge is pressed. Installilng a Fender LSR roller nut involves some cutting due to the different size of the nut.

Run the blade of the utility knife in the gap between the old guitar nut and the fretboard. This will remove any glue connecting the nut to the neck on the sides and minimise wood removal when removing the old nut.

Grip the end of the nut with the nippers. Pull it carefully from the guitar neck. You will see the nut slot, which will be the starting area for installation of the roller nut.

Measure the width of the nut slot, using the calipers. You will have to widen the nut slot to accommodate the roller nut.

Measure the width of the Fender LSR roller nut, using the calipers.

Subtract the width of the nut slot from the width of the roller nut. This is the amount that the nut slot will need to be extended.

Mark a line across the fretboard to indicate the new bottom edge of the nut slot. The line is located the same distance away from the edge of the nut slot as the difference between the width of the roller nut and nut slot determined in Step 5. The nut slot should be extended toward the body of the guitar, not the headstock.

Saw down the line to create the new end of the nut slot with a backsaw. Don't saw deeper than the depth of the original nut slot.

Chisel out the excess fretboard wood that remains between the saw cut and original nut slot. Take your time and don't dig too deeply.

Insert the Fender LSR roller nut in the nut slot.

Mark the two screw holes on the nut on the surface of the nut slot.

Remove the nut from the guitar neck.

Drill holes for the screws that in the locations you marked in the nut slot. Do not drill deeper than the length of the installation screws that came with the roller nut.

Blow away any sawdust from the nut slot.

Sand the nut slot with the sandpaper.

Insert the Fender LSR roller nut in the nut slot.

Install the screws to mount the nut onto the guitar neck. It is now ready for use.


It is easier to remove wood from a guitar neck than to replace it. Double-check measurements before making any cuts. Mistakes while installing the nut may have permanent consequences.

Things You'll Need

  • Fender LSR roller nut
  • Utility knife
  • Nippers
  • Drill
  • Screwdriver
  • Calipers
  • Backsaw
  • Chisel
  • Hammer
  • Sandpaper
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About the Author

Matthew Anderson started as a writer and editor in 2003. He has written content used in a textbook published by Wiley Publishing, among other publications. Anderson majored in chemical engineering and has training in guitar performance, music theory and song composition.