S-91080A102 Easy-Install Slotted Washers

Easy-Install Slotted Washers

1291FA00027 Easy-Install Slotted Washers
1291FA00027 Easy-Install Slotted Washers

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Part No.
Part No. 1291FA00027
Equivalent to mcmaster :
91080A102

Basic Information

System of Measurement Inch
Washer Type Slotted

Dimension Parameters

OD 0.406"
Thickness 0.036-0.045"

Material & Strength Parameters

Material 18-8 Stainless Steel
Hardness Rockwell B68

Installation & Application Parameters

For Screw Size No. 10

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant

Geometric Parameters

Slot Width 13/64"
Slot Depth 1/4"
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
  • Precise fit for No. 10 screws ensures secure fastening, reducing assembly time and preventing loosening.
  • Optimized slot dimensions (13/64" width, 1/4" depth) for easy tool access and efficient installation.
  • Enhanced durability with Rockwell B68 hardness, providing consistent performance under mechanical stress.
  • Reliable dimensional stability with 0.406" OD and 0.036-0.045" thickness for uniform load distribution.
  • Compliance with strict regulations including RoHS 3 and REACH, ensuring safe use in global industrial markets.
  • Versatile inch system compatibility for seamless integration with standard equipment and replacement parts.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this slotted washer in 18-8 stainless steel addresses common challenges like corrosion-induced failure and assembly inefficiency. Its corrosion-resistant properties make it suitable for applications in chemical processing, marine equipment, and outdoor machinery, where exposure to moisture and chemicals is frequent. The precise slot width and depth allow for quick installation with standard tools, reducing labor costs and minimizing downtime. By providing uniform pressure distribution, it helps prevent surface damage and bolt loosening in high-vibration environments, such as automotive assemblies or heavy machinery. This washer’s Rockwell B68 hardness ensures it maintains integrity under load, offering long-term value in industrial washers for OEMs and maintenance teams.

Specification Summary & Compliance

This washer features an OD of 0.406", thickness range of 0.036-0.045", and slot dimensions of 13/64" width and 1/4" depth, designed for No. 10 screw sizes in the inch measurement system. It adheres to standard manufacturing tolerances for consistent performance and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global supply chains.

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