Lock Nut Fits 1018 2018 M10LNT M82222. Replaces Part Numbers : M82222, M10LNT. Fits John Deere Rotary Cutter models 1018, 2018. Din 985 Lock Nut. EXPERT SERVICE. Qualifying order only. Snow Parts for Ariens, for Briggs & Stratton, for Jacobsen, for Toro, for Troy Built, for Sears & More!