S-90759A940 M12 Flange Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide steel construction, extending service life in harsh industrial environments
• Enhanced load distribution through the 20.7mm flange diameter, preventing surface damage and maintaining joint integrity
• Precision thread engagement with Class 5H fit and fine 1.25mm pitch, ensuring reliable vibration resistance in critical applications
• High-torque capability from the external 12-point drive design, allowing secure installation with standard tools
• Reduced assembly time with integrated flange design, eliminating the need for separate washers and simplifying installation
• Consistent metric performance with M12 thread size, providing reliable compatibility with standard metric fastener systems
• Durable 3.2mm flange thickness offering robust support and stability under heavy mechanical loads

Professional Applications & Engineering Value

This M12 flange nut with black-oxide steel construction addresses critical engineering challenges in industrial assembly. The fine 1.25mm pitch and Class 5H thread fit provide exceptional vibration resistance, making it ideal for automotive, machinery, and structural applications where loosening under dynamic loads is a concern. The integrated 20.7mm flange diameter distributes clamping force evenly, protecting soft materials and reducing stress concentration. The external 12-point drive enables high-torque installation in confined spaces, while the black-oxide surface treatment offers reliable corrosion protection without compromising dimensional accuracy. This combination of features ensures long-term reliability in demanding environments where precision metric fasteners are essential for maintaining assembly integrity.

Specification Summary & Compliance

This metric flange nut features M12 x 1.25mm fine pitch threads with Class 5H thread fit per ISO standards, ensuring precise dimensional accuracy and consistent performance. The external 12-point drive design conforms to industry standards for high-torque applications. Manufacturing complies with relevant metric fastener specifications, and the black-oxide finish meets industrial requirements for corrosion protection. The product adheres to RoHS and REACH environmental compliance standards for safe industrial use.