Contact Lock Washer AFNOR NFE 25-511 SN70093

The contact lock washer to NFE 25-511 and SN 70093 with grooved surface provides the designer the ability to secure wobble-prone screw effectively.

It is particularly suitable for use on slot fasteners, dynamic cross-loaded to the screw connections and applications that require high biasing forces.

Operational: The contact wheel ensures positively spring and a form-fitting locking.


  • multifunctional component
  • no meed of component change
  • readjustment deleted
  • high elasticity
  • reusable
  • material independently
  • temperature insensitive
  • no rotation during screwing
  • suitable for any standard bolt

Available versions:

Form S = narrow - for small headrests
Form M = average - for normal headrests
Form B = wide - for large pressure transmission surfaces and slot fasteners
Form K = serrated - for electrically conductive connections with contact teeth (SN 70093)

Materials and surfaces:

Spring steel hardened 420-510 HV 10
raw / greased, mechanically galvanized, zinc flake coating (eg GEOMET 321A)

Rust and acid-resistant steel (A2 and A4) coatless

Kontaktscheiben 2



Königsberger Strasse 30   D-58840 Plettenberg
+49 (0)2391 2626
+49 (0)2391 3026
This email address is being protected from spambots. You need JavaScript enabled to view it.

About Us

Since 1982, Vossloh Verbindungselemente ("Vossloh Fasteners") is your reliable partner for turned parts, machined parts, screw locks, and fasteners of all types according to standard and/or drawing. We deliver to a wide variety of industries: this includes automotive, locomotive, solar, mechanical engineering, steel engineering, wagon construction, railway superstructure, and wholesale fasteners, among others. Located in Plettenberg, Germany.

Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies.