Coil Modifications - Resistance and Inductance.
Magnets - to yield higher linear force or reduced detent levels.
Higher Strength Plastics for higher impact forces.
Reduced or increased Detent Force to suit the application.
Screw - metric or imperial tips, length.
Special Flanges, Connectors, End of motion detection sensors.
Wire Harness - connectors, pins, lead length, shrink tubing.