Fixed cylindrical handles EN 539 can equally well be used to replace ball knobs on operating / gear lever handles. In that case the operating end of the lever handle will need to have a tapped hole for mounting the EN 539 fixed cylindrical handle.
The threaded stud is deeply embedded in the handle which greatly increases the strength of the plastic body.
Specification
Handle
Plastic, Phenolic (PF)
Operating temperature up to 230 °F (110 °C)
Black, shiny finish
Threaded stud
Steel, zinc plated, blue passivated finish