Floyd Rose FRNR4SP Locking Nut R4 – Secure Tuning Stability

The Floyd Rose FRNR4SP Original Locking Nut R4 in Satin Pearl is designed to keep your guitar in tune, even under aggressive tremolo playing. Tailored for Original and Pro Floyd Rose systems, this model is manufactured in Germany from hardened steel to ensure maximum durability. The R4 size delivers a precise fit for certain neck widths, locking strings in place with confidence.

Engineered for Demanding Tremolo Use

Featuring a hardened steel core and a satin pearl finish, the nut offers resilience and a modern look. Players using necks that require a 42.85 mm nut width and a 254 mm radius will find the R4 profile ensures accurate string spacing and comfortable hand positioning at the nut.

Functional Specs for Reliable Performance

• Width: 42.85 mm — precisely matches compatible necks
• Radius: 254 mm — ideal for contemporary fingerboard shapes
• Height: 7.10 mm — delivers consistent clamping force
• This locking nut maintains even playability by keeping the string spacing (E-e: 36.45 mm) and individual string spacing (6.70 mm) aligned for optimal performance.