Knurled knob
Black phenolic plastic.
Threaded zinc plated steel stud.
Wing nut
Black thermoplastic, glass fiber reinforced, mat.
Brass insert with tapped blind hole.
Brass insert with tapped through hole.
Three-lobe knob
Spoked Handwheel
Zinc plated steel outcropping hub.
Zinc plated steel hub.
Black fiber reinforced phenolic plastic.