S-90407A111 8 mm ID x 20 mm OD DIN 462 Spring Lock Washers for Slotted Bearing Nuts
Spring Lock Washers for Slotted Bearing Nuts
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through conical spring design that maintains constant tension under dynamic loads
- Precise M8 screw compatibility with 8mm inner diameter ensuring perfect fit and optimal force distribution
- Durable steel construction providing reliable performance in demanding industrial environments
- Stepped bearing nut compatibility (DIN 1804) for secure fastening in specialized applications
- Standardized dimensions (20mm OD, 2.5mm height) ensuring interchangeability and easy replacement
- Environmental compliance with RoHS 3 and REACH regulations for safe use across global markets
- Optimized tab design (3mm width, 2mm depth) for enhanced grip and anti-rotation performance
Professional Applications & Engineering Value
This M8 metric spring lock washer delivers exceptional engineering value through its conical steel construction and DIN 462 compliance. The unique conical shape provides continuous spring action that compensates for material relaxation and thermal expansion, effectively preventing loosening in vibration-prone applications. Engineered for use with stepped bearing nuts (DIN 1804), this washer is ideal for machinery, automotive assemblies, and industrial equipment where maintaining clamp load under dynamic conditions is critical. The 0.8mm thickness and precise 20mm outer diameter ensure optimal surface contact while the spring lock design maintains tension longer than flat washers, significantly reducing maintenance frequency and downtime in heavy-duty operations.
Specification Summary & Compliance
This spring lock washer meets DIN 462 specifications with precise dimensional tolerances: 8mm inner diameter, 20mm outer diameter, and 0.8mm thickness. Manufactured from quality steel with conical spring shape, it's engineered for M8 screw applications with stepped bearing nut compatibility per DIN 1804. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental standards for industrial components. While hardness is not rated, the design and material selection ensure reliable performance in standard industrial fastening applications.
