GN 615.3


  • Type K: Steel, standard spring load
  • Type KS: Steel, high spring load
  • Type KN: Stainless Steel, standard spring load
  • Type KSN: Stainless Steel, high spring load

Type K / KS

  • Housing Steel, blackened
  • Ball Steel, hardened

Type KN / KSN

  • Housing Stainless Steel AISI 303
  • Ball Stainless Steel AISI 420C, hardened


Stainless Steel AISI 631

Marking of Type KS / KSN:

Housing with 2 longitudinal markings

  • Thread lockings (optional)
  • Polyamide patch PFB

Type K/KS M 3 ... M16

Type K*/KS* M20 ... M24

Type KN/KSN M3 ... M6

Type KN*/KSN* M20 ... M24

  • Micro encapsulation* MVK

* not availble from stock, requires a minimum order quantity

The PFB patch is a jamming thread locking (Polyamide patch). The coating for Type K or KN (standard spring load) is indicated blue, for Type KS or KSN (high spring load) green. For this Type of thread locking a relatively high torque is required. Therefore this version with internal hexagon is more preferable than the version with slot GN 615 -.

MVK (Micro encapsulation) is a gluing thread locking (indicated red).

  • More information to thread locking MVK-
  • More information to thread locking PFB


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