S-90997A220 M7 Flange Nuts

Flange Nuts

1243FA00003 Flange Nuts
1243FA00003 Flange Nuts

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

Part No.
Part No. 1243FA00003
Equivalent to mcmaster :
90997A220

Basic Information

System of Measurement Metric
Nut Type Flange

Dimension Parameters

Width 9 mm
Height 7 mm

Thread Parameters

Thread Type Metric
Thread Size M7
Thread Direction Right Hand
Thread Pitch 1 mm
Thread Spacing Fine
Thread Fit Class 5H

Head Parameters

Drive Style External 12-Point
Hex Nut Profile Standard

Flange Parameters

Flange Diameter 12
Flange Thickness 1.6 mm

Material & Strength Parameters

Material A286 Stainless Steel
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Enhanced corrosion resistance from A286 stainless steel material, ensuring long-term reliability in harsh environments
  • Superior torque transmission with the 12-point external drive design, reducing tool slippage and improving installation efficiency
  • Precise thread engagement due to Class 5H thread fit, minimizing the risk of loosening under vibration and load
  • Increased load distribution from the 12mm flange diameter, preventing surface damage and improving joint integrity
  • Fine thread pitch (1mm) offering better adjustment control and higher resistance to dynamic stresses
  • Durable construction with 1.6mm flange thickness, providing robust performance in high-stress applications
  • Metric standardization ensures compatibility with global engineering systems and simplifies procurement

Professional Applications & Engineering Value

This M7x1mm A286 stainless steel flange nut is engineered to address critical challenges in industrial and mechanical assemblies where corrosion resistance, high torque requirements, and vibration resistance are paramount. The A286 stainless steel composition offers exceptional strength and durability, making it ideal for aerospace, automotive, and heavy machinery applications exposed to extreme temperatures and corrosive agents. The 12-point external drive allows for secure tool engagement, enabling efficient installation in confined spaces while minimizing wear. Combined with the fine thread and Class 5H thread fit, this nut ensures reliable fastening under dynamic loads, reducing maintenance needs and enhancing operational safety in demanding environments.

Specification Summary & Compliance

This flange nut adheres to metric system standards with M7x1mm fine thread and Class 5H thread fit for precise dimensional accuracy. It meets industry specifications for 12-point external drive fasteners and is manufactured from A286 stainless steel for consistent performance. Compliant with RoHS and REACH regulations, this nut ensures environmental safety and is suitable for use in applications requiring high-strength, corrosion-resistant industrial fasteners.

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