S-92244A117 0.265" ID Square Washers

Square Washers

1283FA00109 Square Washers
1283FA00109 Square Washers

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

Part No.
Part No. 1283FA00109
Equivalent to mcmaster :
92244A117

Basic Information

System of Measurement Inch
Washer Type Square

Dimension Parameters

ID 0.265"
Thickness 0.048-0.075"
Width 0.438"

Material & Strength Parameters

Material 316 Stainless Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size No. 12

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant
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 in harsh environments due to premium 316 stainless steel construction
  • Precise fit for No. 12 screws with a 0.265" inner diameter, ensuring secure fastening and load distribution
  • Optimized surface coverage with a 0.438" width, providing superior stability and preventing surface damage
  • Durable, long-lasting performance from a material known for its strength and reliability in industrial settings
  • Full RoHS 3 & REACH compliance guaranteeing environmental safety and meeting stringent international regulations
  • Square design advantage offering increased bearing surface and resistance to rotation during tightening
  • Consistent dimensional accuracy in the inch system for reliable integration with standard hardware

Professional Applications & Engineering Value

These 316 stainless steel square washers deliver critical engineering value in applications where corrosion resistance and fastener integrity are paramount. The square shape provides a larger bearing surface compared to round washers, effectively distributing clamp load and preventing pull-through in soft materials or painted surfaces. This is particularly valuable in assembly lines, marine hardware, chemical processing equipment, and outdoor structures exposed to moisture, salts, or industrial chemicals. Manufactured to precise inch dimensions with a 0.265" ID for No. 12 screws, they ensure a perfect fit, reducing installation time and preventing loosening from vibration. The inherent properties of 316 stainless steel solve the common industrial pain point of premature fastener failure, extending maintenance cycles and improving overall assembly reliability.

Specification Summary & Compliance

This square washer is specified with an inner diameter of 0.265", a width of 0.438", and a thickness ranging from 0.048" to 0.075". It is designed for use with No. 12 screw sizes within the inch system of measurement. The product is manufactured from 316 Stainless Steel and conforms to major compliance standards, including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free of restricted hazardous substances and safe for industrial and environmental use.

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