S-91717A119 0.531" ID x 1.25" OD Clipped Washers

Clipped Washers

1286FA00011 Clipped Washers
1286FA00011 Clipped Washers

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

Part No.
Part No. 1286FA00011
Equivalent to mcmaster :
91717A119

Basic Information

System of Measurement Inch
Washer Type Clipped

Dimension Parameters

ID 0.531"
OD 1.25"
Thickness 0.084-0.097"

Material & Strength Parameters

Material Steel
Hardness Rockwell B40

Installation & Application Parameters

For Screw Size 1/2"

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 1.07"
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 load distribution with 1.25" OD design prevents surface damage and extends joint life
  • Precise 0.531" ID fit ensures perfect alignment with 1/2" screws for reliable assembly
  • Rockwell B40 hardness rating provides exceptional durability under heavy mechanical stress
  • 1.07" clipped width design enables easy installation in tight spaces and confined assemblies
  • 0.084-0.097" thickness range offers optimal compression and vibration resistance
  • Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications
  • Steel construction delivers reliable performance in demanding mechanical environments

Professional Applications & Engineering Value

This steel clipped washer addresses critical engineering challenges in industrial fastener systems where space constraints and vibration resistance are paramount. The clipped design with 1.07" width provides clearance for installation in confined assemblies while maintaining full bearing surface coverage. Engineered with Rockwell B40 hardness, the washer maintains structural integrity under heavy loads and repetitive stress cycles common in machinery, equipment manufacturing, and structural steel applications. The precise 0.531" ID ensures perfect alignment with 1/2" screws, preventing misalignment issues that can compromise joint integrity. This combination of dimensional precision and material strength makes it ideal for automotive, construction, and heavy equipment industries where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to exact inch system specifications with internal diameter of 0.531", outer diameter of 1.25", and thickness range of 0.084-0.097". Features clipped width of 1.07" specifically engineered for 1/2" screw applications. The steel construction achieves Rockwell B40 hardness for consistent mechanical performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.

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