DIN 25201 Wedge Lock Washer

The DIN 25201 Wedge Lock Washer is a precision-engineered locking washer designed to prevent bolts, nuts, and other fasteners from loosening under vibration or dynamic loads. It features a wedge-like ramp design that creates a tight, self-locking action when compressed between the fastener and the mating surface.

Key Features:

Material: Typically made from hardened steel (e.g., carbon steel, stainless steel) for durability and high clamping force.

Design: Asymmetrical wedge ramps on the top and bottom surfaces generate a counter-wedging effect when tightened, resisting rotation.

Function: The wedge action increases friction and maintains preload, even under extreme vibrations.

Reusability: Generally reusable if not excessively deformed during installation.

Standards: Complies with DIN 25201 (German industrial standard) for dimensions and performance.

Applications:

Used in high-vibration environments (e.g., automotive, aerospace, machinery, rail systems).

Suitable for bolted joints requiring secure, long-term locking without adhesives or additional devices.

Installation Notes:

Must be installed in the correct orientation (ramp angles facing the correct direction).

Tightening torque should follow specifications to ensure proper wedge-locking action.

This washer provides a reliable, mechanical locking solution superior to standard flat or spring washers.