Kitchen machine Major / Chef accessory drive head / clutch. Dense 2BA-thread (Diameter 5 mm), thread length 10 mm. Left handed thread. Original spare part for Kenwood blender jugs A993, A994, A984 & vegetable cutters A997, A998, A929.
Note. newer A993/A994/A996 & A997/A998 models may have sparcer M5-thread.