Material: Steel, black oxide finish, plunger pin: Hardened. Cap:
Plastic Thermoplast (polyamide) black, matt finish. Note: cam-action
indexing plungers are used if the plunger pin sometimes needs to be
retracted, i.e must not stick out. Turning the indexing plunger by 180°
causes the plunger pin to retract. There is a notched catch to ensure
the plunger can be locked in both positions. Version A: Without
counter nut, without plastic cap.

Version B: Without counter nut, with plastic cap.

Version AK: With counter nut, without plastic cap.

Version BK: With counter nut, with plastic cap.