OS Motors Locknut Set FS-91 Surpass

    This is the Propeller Locking Nut Set for the O.S. Max
FS-70 Surpass FS-91 Surpass FS-120 Surpass SE
91 FX FS-91 Surpass II FS-120 Surpass SP
FS-91 Exceed II w/pump FS-120 Exceed III w/pump

FEATURES:
Long lasting steel construction.
Prevents the propeller from flying off even if the propeller
    need to slip or loosen up due to detonation or knocking on
    the 4-stroke engines.

INCLUDES:
One metal propeller washer (11mm I.D., 28mm O.D., 3mm thick)
One metal hex lock nut (sandwiched in between prop washer and
    expansion bolt)(7mm I.D., 14mm O.D., 9.5mm thick)
One metal hex expansion bolt (set up last inside the lock nut)
    (7mm I.D., 12mm O.D., 8mm thick)

SPECS:
Bolt Threading: 5/16" - 24