S-91717A139 10.5 mm ID x 28 mm OD Clipped Washers

Clipped Washers

1286FA00021 Clipped Washers
1286FA00021 Clipped Washers

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

Part No.
Part No. 1286FA00021
Equivalent to mcmaster :
91717A139

Basic Information

System of Measurement Metric
Washer Type Clipped

Dimension Parameters

ID 10.5 mm
OD 28 mm
Thickness 1.4-1.8 mm

Material & Strength Parameters

Material Steel
Hardness Rockwell B55

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

Geometric Parameters

Clipped Width 23.6 mm
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Enhanced vibration resistance through the clipped design that prevents rotation under dynamic loads
  • Superior load distribution with precisely engineered 28mm outer diameter for maximum surface coverage
  • Exceptional durability achieved through Rockwell B55 hardness rating for long service life
  • Secure M10 screw compatibility with 10.5mm inner diameter ensuring perfect fit and alignment
  • Optimized space utilization with 23.6mm clipped width design for confined assembly areas
  • Environmental compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
  • Consistent performance maintained through controlled 1.4-1.8mm thickness manufacturing tolerances

Professional Applications & Engineering Value

This M10 metric clipped steel washer addresses critical engineering challenges in industrial fastening systems where vibration loosening and uneven load distribution compromise assembly integrity. The clipped design provides positive locking against rotation while maintaining full load distribution capabilities through its 28mm OD. Manufactured from steel with Rockwell B55 hardness, this washer withstands repeated stress cycles in heavy machinery, automotive assemblies, and structural applications. The precise 10.5mm ID ensures perfect alignment with M10 fasteners, preventing misalignment issues that lead to premature failure. With RoHS 3 and REACH compliance, this component meets the strictest environmental regulations for global industrial supply chains, making it ideal for OEM manufacturing and maintenance operations requiring reliable, regulation-compliant fastening solutions.

Specification Summary & Compliance

This metric steel clipped washer features precise dimensional specifications including 10.5mm inner diameter, 28mm outer diameter, 1.4-1.8mm thickness range, and 23.6mm clipped width. The component maintains standard metric tolerances for M10 screw applications and achieves Rockwell B55 hardness for consistent mechanical performance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory compliance for industrial applications worldwide.

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