Wing nut
Black thermoplastic, glass fiber reinforced, mat.
Brass insert with tapped blind hole.
Threaded zinc plated steel stud.
Three-lobe knob
Black thermoplastic, mat.
Integrated key-lock.
Brass insert with tapped through hole.
Stainless steel insert with tapped through hole (AISI 303).
Zinc plated insert with smooth blind hole.
Black phenolic plastic.