This is the locking nut for Floyd Rose 1000 Series tremolo systems — the clamping block that locks string pitch at the headstock end so the bridge can float without the strings slipping at the top. If your existing nut is stripped, cracked, or corroded to the point where the clamp blocks won't seat squarely, this is the direct replacement. Part number FR1NR3SG, satin gold finish.

Fit is decided by two things: neck width at the nut slot, and fretboard radius. Floyd Rose sizes its nuts in a series — R2, R3, R4, and so on — and the R3 designation here refers to a specific width in that range. Too narrow and the outer strings crowd toward the fretboard edge. Wrong radius and the outer strings sit proud of the clamping face and buzz no matter how much you torque the block. Do not order by guitar model. Measure the width of your existing nut slot and check the fretboard radius before ordering — if the old nut is still in place, the size is usually stamped or etched on it.

The nut is hardened steel, which matters because the clamping blocks bear a lot of lateral string load under tuning. Softer metal wears a groove into the nut body over time and the clamp stops sitting flat. This is a direct 1000 Series part, so the block geometry and screw pattern are matched to that system.

If you're not certain this is the right size for your guitar, send us the make, model, and year and we'll check it against what we know.