S-92244A217 0.406" ID Square Washers

Square Washers

1283FA00118 Square Washers
1283FA00118 Square Washers

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

Part No.
Part No. 1283FA00118
Equivalent to mcmaster :
92244A217

Basic Information

System of Measurement Inch
Washer Type Square

Dimension Parameters

ID 0.406"
Thickness 0.114-0.126"
Width 0.813"

Material & Strength Parameters

Material 316 Stainless Steel
Hardness Rockwell B68

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
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 316 Stainless Steel construction for extended service life in harsh chemical and marine environments
  • Exceptional load distribution thanks to the square design and 0.813" width, preventing surface damage and fastener loosening
  • Precision dimensional fit with 0.406" inner diameter ensuring perfect alignment with 3/8" screws
  • Enhanced mechanical durability from Rockwell B68 hardness, maintaining structural integrity under heavy loads
  • Consistent thickness control between 0.114-0.126" for reliable performance in critical assembly applications
  • Full regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
  • Heavy-duty performance in inch measurement system applications requiring industrial-grade reliability

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 316 Stainless Steel square washers provide critical corrosion protection in chemical processing, marine, and offshore applications where saltwater or aggressive chemicals would degrade ordinary fasteners. The square washer design offers significantly larger surface contact area compared to round washers, distributing clamp load more effectively to prevent surface indentation and maintain joint integrity in structural assemblies. With precise 0.406" inner diameter matching 3/8" screw sizes, these washers ensure proper alignment during installation, reducing assembly time and preventing cross-threading issues. The controlled 0.114-0.126" thickness range guarantees consistent performance in precision equipment where uniform clamping force is essential for operational safety and longevity.

Specification Summary & Compliance

This square washer features inch system dimensions with 0.406" ID, 0.813" width, and 0.114-0.126" thickness manufactured to industrial standards for 3/8" screw applications. The 316 Stainless Steel construction provides excellent corrosion resistance, while the Rockwell B68 hardness ensures mechanical durability. The product is 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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