S-93413A170 10.5 mm ID x 20 mm OD DIN 125; ISO 7089 General Purpose Washers

General Purpose Washers

1247FA00161 General Purpose Washers
1247FA00161 General Purpose Washers

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

Part No.
Part No. 1247FA00161
Equivalent to mcmaster :
93413A170

Basic Information

System of Measurement Metric
Washer Type Flat
Specifications Met DIN 125; ISO 7089

Dimension Parameters

ID 10.5 mm
OD 20 mm
Thickness 1.8-2.2 mm

Material & Strength Parameters

Material Black Corrosion-Resistant-Coated Steel
Hardness Rockwell B75

Installation & Application Parameters

For Screw Size M10

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 protection with black-coated steel to extend service life in harsh environments
  • Precise M10 compatibility with 10.5mm ID ensuring secure fit and even load distribution
  • Enhanced durability from Rockwell B75 hardness for reliable performance under mechanical stress
  • International standard compliance with DIN 125 and ISO 7089 for consistent quality and interchangeability
  • Environmental regulation adherence via RoHS 3 and REACH compliance for safe industrial use
  • Optimized thickness range (1.8-2.2mm) providing vibration resistance and joint stability
  • Broad industrial applicability due to metric sizing and corrosion-resistant properties

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these M10 flat washers address critical fastening challenges where corrosion resistance and mechanical integrity are paramount. The black corrosion-resistant coated steel construction prevents rust formation in humid, chemical-exposed, or outdoor environments, reducing maintenance frequency and failure risks. With DIN 125 and ISO 7089 certification, they ensure dimensional accuracy for uniform load spreading in metric assembly systems, preventing bolt loosening and surface damage. Ideal for machinery, automotive, and structural applications, these washers deliver long-term reliability by combining Rockwell B75 hardness with regulatory compliance, making them a trusted choice for engineers prioritizing safety and durability.

Specification Summary & Compliance

This washer features precise metric dimensions: 10.5mm inner diameter, 20mm outer diameter, and 1.8-2.2mm thickness range, manufactured to DIN 125 and ISO 7089 standards for dimensional consistency. It meets Rockwell B75 hardness requirements and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for industrial procurement.

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