This is a 1/4-M5 Lock Nut Set from O.S. Engine.|
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.
One prop washer
One lock nut
One expansion bolt for spinner screw (spinner screw not included)
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)