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SCHNORR SAFETY WASHERS

Reliable and economic fasteners

Introduction

 

The Schnorr safety washers are in the form of a disc spring which is serrated on both sides and of trapezoidal cross section. Schnorr washers are engineered to match screw dimensions precisely. The outer diameter of the washer is matched to the head diameter of pan-head and hexagon socket head cap screws.

As a result, the Schnorr serrated safety washer can be used with practically any screw and bolt type, including those with recessed heads. The only exception is countersunk screws.

The ingenious form of the Schnorr serrated safety washer combines the advantages of security through friction and mechanical locking. This unique design ensures that Schnorr washers provide exceptional performance even under the most demanding conditions.

Schnorr safety washers

They offer the following advantages:

  • The serrations lock the washers positively, resisting vibration and preventing loosening.
  • Concentric force transmission and uniform axial load eliminate bending torques and deformation of the bolt stem, ensuring a secure fit.
  • The design of the serrations prevents friction and damage to components when tightening, extending the lifespan of both the washer and the components it secures.
  • High safety factor against loss of preload and loosening, maintaining the integrity of the assembly.
  • Wide variety of materials and different finishes to suit various applications and environments.
  • The closed ring form results in a high degree of pre-tensioning, whilst avoiding the burst-open effect, providing reliable performance.

Schnorr washers are available in two versions to cater to different needs:

  • Standard Type ‘S’ is available for bolts or screws M1.6 to M36 for grades up to 8.8
  • Reinforced Type ‘VS’ for bolts or screws for grades 8.8 and 10.9

Schnorr washers are essential components in ensuring the reliability and longevity of bolted joints. They provide exceptional resistance to vibrational loosening, making them ideal for a wide range of industrial applications. From automotive to aerospace, Schnorr safety washers are trusted for their ability to maintain high tension and prevent bolt slippage.

With their robust design and versatility, Schnorr washers are a trusted choice for engineers and manufacturers worldwide. Whether you are dealing with heavy machinery, construction, or precision instruments, these washers offer the reliability and peace of mind you need. Explore our extensive range of Schnorr safety washers and enhance the performance and durability of your assemblies today.

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