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 Surpass II w/pump  FS-120 Surpass III w/pump

FEATURES: Durable steel construction.
          Prevents the propeller from flying off even if the propeller
            should slip or loosen 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 between prop washer and
            expansion bolt)(7mm I.D., 14mm O.D., 9.5mm thick)
          One metal hex expansion bolt (installed last inside the lock nut)
            (7mm I.D., 12mm O.D., 8mm thick)

SPECS:    Bolt Threading: 5/16" - 24
                                                                     AXY 4/3/94
                                                                          ir/jl