Shift Knob Jam Nut : M12 x 1.25 for most Toyota

*** This nut is included with knobs we sell (where applicable) so do not buy this item unless you want a spare! *** Jam nut for shifter knobs and handles with M12 x 1.25 thread: Mild steel w/ black oxide finish Round w/ two machined flats for wrench 21mm outside diameter (~ 13/16") 19mm across flats (~ 3/4") 10mm tall (~ 3/8") Intended for aftermarket classic knobs & T-handles w/ ~1/8" recessed mount NOT compatible with OE knobs Thread size found on most Toyota & Scion models w/ manual trans only Does NOT FIT Hurst sticks Other thread sizes available