Material: Steel, black oxide finish, plunger pin hardened. Knob:
Plastic Thermoplast (polyamide) black, matt finish, cannot be
disassembled. Indexing plungers 817 offer the following advantages: –
small outer dimensions – most of the release mechanism (version C/CK) is
covered – defined thread length by an undercut at the end of the thread
(version G/GK).

Version B/BK: With knob, without notched catch, this version is
used where, on releasing the knob, the plunger pin should be returned to
its initial position by the spring force.

Version C/CK: With knob, is used if the plunger pin has to remain
in retracted position. To achieve this, the knob is rotated by 90
degrees after being retracted. A notched catch stops the locked-in knob
from returning to its initial position accidentally or due to vibration.

Version G/GK: With threaded plunger end, for applications where a
special knob to customer’s request is required or where the plunger pin
is not shifted manually.