Plunger body and pin: Steel, black oxide finish, plunger pin hardened
Knob: Technopolymer plastic (Polyacetal POM), matte black-gray color (RAL 7021), not removable
Safety push button: Technopolymer plastic (Polyamide PA), matte red color (RAL 3000)
GN 414.1 safety indexing plungers with click type lock are used when the plunger pin is to be briefly prevented from protruding. When the pin is retracted to its end position, the button engages with a clearly audible click.
The safety lock can be unlocked only by exerting axial pressure on the red safety push button, with the plunger pin then returning to its starting position by spring force.