OS Motors Locknut Set FS-120 Surpass

This is a 1/4-M5 Lock Nut Set from O.S. Engine.

FEATURES:
All metal parts.
designed specially for usage with "TRU-TURN" spinners. They prevent
    the spinner/prop assembly from flying off, even if the
    propeller itself need to slip or loosen.

INCLUDES:
One prop washer
One lock nut
One growth bolt for spinner screw (spinner screw not included)

REMARKS:
This set will fit the following O.S. engines
    FS-70 Go beyond FS-120 Go Beyond
    FS-91 Go beyond 1.40RX and 1.40RX-EFI (2-stroke)