Manufacturer Description

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


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


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


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




BOX DIMENSIONS: 2.13" W. X .50" H. X 3.50" L.
BOX WEIGHT: .06 LBS.