GN 816


  • Type A: Operation with knob, sleeve black, without lock nut
  • Type AK: Operation with knob, sleeve black, with lock nut
  • Type AR: Operation with knob, sleeve red, without lock nut
  • Type ARK: Operation with knob, sleeve red, with lock nut
  • Type B: Operation with key, sleeve black, without lock nut
  • Type BK: Operation with key, sleeve black, with lock nut

Threaded body

Steel zinc plated, blue passivated


Stainless Steel AISI 303


Stainless Steel AISI 301


Plastic (Polyamide PA)

  • black, matt
  • not removable


Plastic (Polyamid PA)

  • black, matt or red
  • not removable

If not operated, the plunger of the locking plungers GN 816 protrudes. To retract, move against the spring force and hold in the end position by turning by 90°.

The shape of the cam curve secures the plunger against accidental operation.

When operating the button (Type AR/ARK), to visible red covering sleeve indicates the locing status: Indexing pin does not protrude.

For the execution with operation with key (Type B / BK) a key is required to move the plunger. In this execution, a cover sleeve provides additional security and safety from unauthorized removal of the locking plunger. The cover sleeve also provides additional protection against malfunction caused by dirt.

  • Range of indexing plungers 

Keys GN 816-10

Plastic (Polyamide PA)

(All locking plungers have the same key)

  • Stainless Steel characteristics 
  • Plastic characteristics 
  • Load rating information 

Version with key (Type B / Type BK)


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