Bosch  LPG Gas Jet Set - 4 Burner Hob Injector Propane Nozzle Conversion Kit

Standard M6 x 0,75 thread, height 9mm, diameter 7mm across the flat.

To fit most 4-hob cookers available: AEG, Amica, Ardo, Ariston, Baumatic, Bosch, Candy, Cannon, Creda, Electrolux, Gorenje, 

Hotpoint, Indesit, Mastercook, Siemens, Stoves, New World, Zanussi, Vitralux and others