S-90895A224 1.126" ID x 1.535" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

1325FA00050 Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws
1325FA00050 Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 1325FA00050
Equivalent to mcmaster :
90895A224

Basic Information

System of Measurement Inch and Metric
Washer Type Spring Lock

Dimension Parameters

ID 1.126"
OD 1.535"
Thickness 0.071"
Overall Height 0.122"

Material & Strength Parameters

Material Zinc-Plated Steel
Hardness Rockwell C38

Installation & Application Parameters

For Screw Size 1 1/16", M27

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant

Special Type Parameters

Serration Location Top and Bottom
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior vibration resistance prevents fastener loosening in high-stress environments
  • Dual-sided serration design provides maximum grip on both top and bottom surfaces
  • Zinc-plated steel construction offers excellent corrosion resistance and durability
  • Rockwell C38 hardness rating ensures long-term performance under heavy loads
  • Dual measurement compatibility fits both inch (1 1/16") and metric (M27) screw systems
  • Precision-engineered dimensions guarantee consistent performance and easy installation
  • Full regulatory compliance meets international industrial safety standards

Professional Applications & Engineering Value

This spring lock washer with top and bottom serrations addresses critical vibration-induced loosening in heavy machinery, automotive assemblies, and structural applications. The zinc-plated steel construction provides superior corrosion resistance while maintaining Rockwell C38 hardness for enduring performance under extreme conditions. Dual-sided serration technology creates exceptional bite on both mating surfaces, effectively resisting rotational forces that compromise joint integrity. Engineered to accommodate both inch (1 1/16") and metric (M27) screw sizes, this versatile component simplifies inventory management for global operations. The precise dimensional control ensures reliable seating and consistent clamping force distribution across demanding industrial applications.

Specification Summary & Compliance

This washer features precise dimensions (1.126" ID × 1.535" OD × 0.071" thickness) with dual serration technology on both top and bottom surfaces. Manufactured from zinc-plated steel with Rockwell C38 hardness rating, it's compatible with both inch (1 1/16") and metric (M27) fastener systems. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest international environmental and safety standards for industrial components.

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