Schnorr Serrated Safety Washers
Schnorr safety washers are serrated conical spring washers that lock the fastener and maintain joint tension. We supply Schnorr washers available to order across a range of metric sizes — send us your requirement.
Also known as: serrated safety washers, locking disc springs, safety washers.
Schnorr Washers dimensions
| Bolt Size | d1 | d2 | h (max.) | s |
|---|---|---|---|---|
| M2.5 | 2.7mm | 4.8mm | 0.9mm | 0.45mm |
Materials & strength
Spring tension + serrated grip
The conical spring section keeps the joint loaded while face serrations resist rotation.
What is a Schnorr safety washer?
A one-piece conical spring washer with serrations on both faces: the cone maintains tension in the joint while the serrations grip the mating faces, resisting loosening under vibration.
Where are Schnorr washers used?
They are specified where a compact one-piece locking element is wanted under standard bolt heads and nuts, particularly in machine building and vibration-prone assemblies.
Need Schnorr Washers in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.