The names of the notes in the F flat Major scale are: F♭ G♭ A♭ B♭♭ C♭ D♭ E♭

F flat Major scale in most common clefs
Here is F flat Major in most common clefs: treble clef, bass clef, tenor clef and alto clef.
F flat Major scale in treble clef (G-clef)
Below is the F sharp Major scale in treble clef:

F flat Major scale in bass clef
Below is the F sharp Major scale in bass clef:

F flat Major scale in alto clef
Below is the F sharp Major scale in alto clef:

F flat Major scale in tenor clef
Below is the F sharp Major scale in tenor clef:

Scale degrees of F flat major
The degrees of F flat major scale are:
F♭ : degree I (Tonic)
G♭ : degree II (Supertonic)
A♭ : degree III (Mediant)
B♭♭ : degree IV (Subdominant)
C♭ : degree V (Dominant)
D♭ : degree VI (Submediant)
E♭ : degree VII (Leading Tone)
Leading Tone of F flat Major
The leading Tone of F flat Major is E flat, because E flat is the degree VII and is distant to a seventh major of the tonic, or an half step
Chords of F flat major scale
Here are triad chords for F flat Major scale:
Chord I : F♭ Major (Notes: F♭ A♭ C♭)
Chord II : G♭ minor (Notes: G♭ B♭♭ D♭)
Chord III : A♭ minor (Notes: A♭ C♭ E♭)
Chord IV : B♭♭ Major (Notes: B♭♭ D♭ F♭)
Chord V : C♭ Major (Notes: C♭ E♭ G♭)
Chord VI : D♭ minor (Notes: D♭ F♭ A♭)
Chord VII : E♭ diminished (Notes: E♭ G♭ B♭♭)