S-91717A117 0.406" ID x 1.25" OD Clipped Washers

Clipped Washers

1286FA00009 Clipped Washers
1286FA00009 Clipped Washers

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

Part No.
Part No. 1286FA00009
Equivalent to mcmaster :
91717A117

Basic Information

System of Measurement Inch
Washer Type Clipped

Dimension Parameters

ID 0.406"
OD 1.25"
Thickness 0.084-0.097"

Material & Strength Parameters

Material Steel
Hardness Rockwell B40

Installation & Application Parameters

For Screw Size 3/8"

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 1.04"
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 load distribution with 1.25" OD and 1.04" clipped width for superior surface coverage and reduced material stress
  • Exceptional durability thanks to steel construction and Rockwell B40 hardness, resisting deformation under heavy loads
  • Precise fit for 3/8" screws with 0.406" ID, ensuring secure fastening and minimizing vibration loosening
  • Corrosion resistance from compliant steel material, extending service life in harsh industrial environments
  • Regulatory compliance with RoHS 3 and REACH standards, guaranteeing safe, eco-friendly use in global markets
  • Consistent thickness control (0.084-0.097") for uniform clamping force and reliable assembly performance
  • Easy installation with clipped design, allowing quick placement and alignment in high-volume applications

Professional Applications & Engineering Value

This steel clipped washer is engineered to address common industrial challenges like vibration-induced loosening and surface damage. Its inch system dimensions and clipped design enable rapid assembly in machinery, automotive, and construction sectors, where time efficiency is critical. The Rockwell B40 hardness ensures the washer maintains its shape under repetitive stress, preventing fastener failure. Combined with corrosion-resistant properties, it offers long-term reliability in outdoor or humid conditions, reducing maintenance costs and downtime. Ideal for heavy-duty applications, this washer provides a cost-effective solution for securing 3/8" screws in structural and equipment fastening.

Specification Summary & Compliance

This washer meets standard inch system tolerances with precise dimensions: ID 0.406", OD 1.25", thickness 0.084-0.097", and clipped width 1.04". Manufactured from steel with Rockwell B40 hardness, it adheres to common industrial fastener specifications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for rigorous engineering use.

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