S-92141A227 0.344" ID x 0.75" OD General Purpose Washers

General Purpose Washers

1246FA00109 General Purpose Washers
1246FA00109 General Purpose Washers

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

Part No.
Part No. 1246FA00109
Equivalent to mcmaster :
92141A227

Basic Information

System of Measurement Inch
Washer Type Flat

Dimension Parameters

ID 0.344"
OD 0.75"
Thickness 0.036-0.044"

Material & Strength Parameters

Material 18-8 Stainless Steel
Hardness Rockwell B68

Installation & Application Parameters

For Screw Size No. 18

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 thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
  • Excellent load distribution with a 0.75" outer diameter, minimizing surface pressure and preventing material damage.
  • Precise fit for No. 18 screws with a 0.344" inner diameter, providing secure fastening and reducing installation errors.
  • Enhanced durability from Rockwell B68 hardness, offering consistent performance under mechanical stress.
  • Stable thickness tolerance between 0.036" and 0.044", ensuring uniform performance and ease of assembly.
  • Compliance with environmental standards including RoHS 3 and REACH, making it safe for regulated industrial applications.
  • Broad industrial compatibility as an inch-system flat washer, suitable for various machinery and equipment assemblies.

Professional Applications & Engineering Value

This 18-8 stainless steel flat washer is engineered to address common industrial challenges such as fastener loosening, corrosion-induced failures, and inconsistent load bearing. Its corrosion-resistant material ensures longevity in moist or chemically aggressive settings, while the precise 0.344" ID and 0.75" OD provide optimal surface contact for No. 18 screws, distributing clamping force evenly to prevent joint fatigue. Ideal for industrial washers applications in automotive, machinery, and outdoor equipment, it reduces maintenance needs and enhances assembly integrity. The combination of Rockwell B68 hardness and standardized inch dimensions delivers reliable performance in high-vibration environments, making it a cost-effective solution for precision washers requirements.

Specification Summary & Compliance

This flat washer features inch-system dimensions with an inner diameter of 0.344", outer diameter of 0.75", and thickness ranging from 0.036" to 0.044". It conforms to standard specifications for No. 18 screw size compatibility and is manufactured from 18-8 stainless steel with a hardness of Rockwell B68. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.

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