CONTACT LOCK WASHER
VKSS – VKSM – VKSB – VKSK based on AFNOR / NFE 25-511 / SN70093
Contact Lock Washer
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.
The advantages and features at a glance
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
You can also get small quantities from us!
Made in GERMANY