Skip to product information
1 of 5

7 total reviews

Model 6518 The Un-Lock Nut - 6 String Slotted - Radius 10" - 254mm

Model 6518 The Un-Lock Nut - 6 String Slotted - Radius 10" - 254mm



Regular price $24.95 USD
Regular price Sale price $24.95 USD
Sale Sold out
Shipping calculated at checkout.
Select Material

The 6518 is a great option to upgrade or replace the nut on your electric guitar equipped with the Floyd Rose locking nut.

It serves to replace FR Original #3 / #4 locking nuts.

Click to find the other options for un-lock nuts.


It is pre-slotted so it will make for an easy install.

Check the Un-Lock Nut Installation Instructions (opens in the new tab).


Advanced Slot Design: Our reimagined slots perfectly accommodate the unique string behavior on Floyd Rose-style guitars, ensuring precision and stability.

Precise Radius Matching: Lock nuts from various manufacturers often miss the mark on radius accuracy. With the Un-Lock Nut, select the perfect radius for your guitar. Crafted from Black TUSQ XL, it allows for individual string height adjustment, ensuring unmatched precision.

Customizable String Heights: The Un-Lock Nut stands out with its ability to be customized for each string's height, offering the adaptability of a standard TUSQ XL nut.

Optimized for Floyd Rose: Designed for Floyd Rose-style bridges and locking nuts, the Un-Lock Nut integrates seamlessly, requiring no guitar modifications.

Enhanced String Stress Distribution: Its extended ramps distribute string stress more evenly, infused with triple the self-lubrication for a friction-free glide, without affecting the nut slot integrity.

Cost-Effective for Manufacturers: The Un-Lock Nut isn't just a player's dream; it's a boom for manufacturers. Its design simplifies installation, increases accuracy in string radii, and boosts customer satisfaction.

Effortless Installation: Installing the Un-Lock Nut is straightforward. Just sand the ends for a flush fit and use a bit of white wood glue. No guitar modifications are needed.

Available Sizes: offered with a 10" radius in FR Original #2 and FR Original #3/#4 sizes, with 12” in FR Special, and with 16” in IBZ options.

Measure Length Thickness Height Str.Sp
inches 1.787” 0.606” 0.343” 1.409”
mm 43.9 15.4 8.7 35.8


View full details

What is the Difference in TUSQ Materials?


TUSQ nuts have a rich tone without the inconsistency found in ivory, bone, and other natural materials. Bone and ivory have hard and soft spots (grain) throughout each piece, hampering the consistent transfer of vibrations to the guitar top. TUSQ nuts are designed to transfer the right frequencies more efficiently from the string to the guitar body.

Best for Acoustic Guitars.


TUSQ XL and Black TUSQ XL nuts are designed to boost guitar tone and performance. These precision-engineered nuts are made with a specially formulated material that couples the strings' vibrations to the neck and brings out the hidden harmonics and richness in every note. It is based on the highly resonant TUSQ man-made ivory but is permanently lubricated to improve the tuning performance of the guitar.

Best for Electric Guitars and BASS.

Rated 4.7 out of 5 stars
Based on 7 reviews
Total 5 star reviews: 6 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
86%would recommend this product
Customer-uploaded media carousel. Press left and right arrows to navigate. Press space or enter to open more details.
Slide 1 selected
7 reviews
  • M
    I recommend this product
    Rated 5 out of 5 stars
    4 minutes ago
    5 Stars

    Easy installation. I no longer need an Allen wrench to tune my Floyd Rose equipped guitar. With locking tuners, this is a game changer for me.

  • JM
    James M H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    A great solution to a common problem!

    For those of us who have moved to locking tuners, this is a great solution for removing the now-unnecessary locking nut! A little sanding and it fit perfectly on the shelf, with better string height than my locking nut ever had.

  • RD
    Reza D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Floyd replacement nut.

    Excellent product. Helped my guitar become a total workhorse with great tuning stability. Would buy again for sure. Great service also

  • D
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago

    This works for a prs se custom 24 and floyd version also costum built guitar. Heads up if you drop tuning on prs use this with original temerolo.

  • JH
    Jim H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    Exceeds expectations!

    This nut works very well! The tuning remains quite stable even when doing drastic moves with the vibrato bar. I don't use my Floyd Rose much so it is nice to be able to use the main tuners.

Reviews LoadedReviews Added