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
- material independently
- temperature insensitive
- no rotation during screwing
- suitable for any standard bolt
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
MADE IN GERMANY