Original Schnorr SCHNORR safety washers have evolved based on the basic mechanical principles of disc springs into a mature and reliable locking product. Through the clever application of both friction and mechanical fastening mechanisms, the clamping force of the safety washer is fully utilized.

Original Schnorr SCHNORR safety washers are currently widely used around the world. An increasing number of anti-vibration challenges are being resolved with safety washers.

The applications of safety washers are very extensive, including automotive engineering, cement industry, agricultural machinery, lawn mowers, textile machines, machine tools, pneumatic drills, steel, and a series of other products.

Original Schnorr SCHNORR safety washers have the following advantages:

1. Serrated structure, high amplitude vibration resistance.

2. Disc design ensures uniform load distribution, avoiding loss due to bending torque and bolt deformation.

3. Special serrated design eliminates friction and damage to contact surfaces during locking.

4. High preload, not prone to loosening.

5. Multiple choices available for material and surface treatment.

6. Closed ring design prevents bursting during preloading.

7. The development and design of the washer align with bolt geometry theory, locking torque, and structural environment.

  Original Schnorr SCHNORR safety washers feature a conical ring design with double-sided serrations. The upper surface of the washer directly contacts the bolt head. Schnorr SCHNORR safety washers are divided into two main categories: S and VS. For bolts below 8.8, select the "S" type (inclusive) up to 8.8; for bolts above 10.9, select the "VS" type. The conical spiral teeth on the washer exert maximum traction force.

Original Schnorr SCHNORR safety washer testing:

Test location: Darmstadt, Germany;

Testing institution: Public Materials Research Laboratory;

Tests demonstrated that original Schnorr SCHNORR safety washers produced using patented processes significantly improve preload.

Conclusion:

Schnorr safety washers retained preload after 1500 stress vibration tests.

Bolts without Schnorr safety washers lost preload after 500 stress vibration tests.