Boiler door handle
Cylindrical handle in black phenolic plastic.
Zinc plated steel hook.
Conical handle
Black phenolic plastic.
Tapped blind hole.
Ogival handle
Zinc plated steel insert and tapped blind hole.
Ogival handle with fixed stud
Zinc plated steel.
Threaded fixed stud with hexagonal locking socket.
Manopola ogivale girevole
Alluminio. Superficie lucidata.
Perno girevole filettato con cava esagonale di bloccaggio.
Ball knob
Red phenolic plastic.
Equatorial groove. Tapped blind hole.
Equatorial groove. Brass insert and tapped blind hole.
Equatorial groove. Self-locking nylon insert.
Equatorial groove. Smooth hole.