S-98688A162 25 mm ID x 39 mm OD DIN 433 General Purpose Washers

General Purpose Washers

1247FA00318 General Purpose Washers
1247FA00318 General Purpose Washers

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

Part No.
Part No. 1247FA00318
Equivalent to mcmaster :
98688A162

Basic Information

System of Measurement Metric
Washer Type Flat
Specifications Met DIN 433

Dimension Parameters

ID 25 mm
OD 39 mm
Thickness 3.7-4.3 mm

Material & Strength Parameters

Material Zinc-Plated Steel
Hardness Rockwell C38

Installation & Application Parameters

For Screw Size M24

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with zinc plating that protects against rust and extends service life in harsh industrial environments
  • Exceptional load distribution thanks to precise 39mm outer diameter that prevents surface damage and maintains joint integrity
  • Perfect fit for M24 screws with 25mm inner diameter ensuring secure fastening and vibration resistance
  • Enhanced durability from Rockwell C38 hardness rating that withstands heavy mechanical stress and repeated use
  • Guaranteed dimensional accuracy meeting DIN 433 standards for reliable performance in precision assemblies
  • Environmental compliance assurance with RoHS 3 and REACH certification for safe, sustainable industrial applications
  • Consistent thickness control between 3.7-4.3mm providing uniform pressure distribution and reliable seating

Professional Applications & Engineering Value

This M24 zinc plated steel flat washer delivers critical engineering solutions for industrial applications where corrosion resistance and load distribution are paramount. The zinc plating creates a protective barrier against moisture and chemicals, significantly extending component life in manufacturing equipment, structural assemblies, and outdoor machinery. Manufactured to DIN 433 standards, these metric washers ensure precise dimensional consistency that prevents loosening under vibration and maintains bolt tension in heavy-duty applications. The Rockwell C38 hardness provides exceptional resistance to deformation under high clamping forces, making these industrial washers ideal for construction, automotive, and machinery sectors where reliability cannot be compromised.

Specification Summary & Compliance

This flat washer features precise metric dimensions with 25mm inner diameter, 39mm outer diameter, and thickness ranging 3.7-4.3mm. Manufactured in compliance with DIN 433 standards for dimensional accuracy and performance requirements. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental regulations for industrial components.

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