S-91346A200 1/4"-20 Flange Nuts

Key Features & Benefits at a Glance

• Superior leveling capability with up to 2½° maximum correction for precise alignment in uneven surfaces
• Integrated flange design eliminates separate washers and provides enhanced load distribution across 5/8" surface area
• Exceptional corrosion resistance from 18-8 stainless steel construction for long-term durability in harsh environments
• Reliable coarse threading with UNC Class 2B fit ensures smooth installation and vibration resistance
• Heavy-duty performance combining 1/8" washer thickness with standard hex profile for maximum torque application
• Regulatory compliance meeting RoHS 3 standards for environmentally responsible manufacturing
• Simplified inventory management with combined nut-washer functionality reducing part count in assemblies

Professional Applications & Engineering Value

This 1/4"-20 flange nut delivers critical engineering solutions for industrial leveling applications where surface irregularities compromise structural integrity. The 18-8 stainless steel construction provides essential corrosion resistance for manufacturing equipment, outdoor structures, and marine applications. The integrated 5/8" flange acts as a permanent washer, distributing clamp load over wider areas to prevent surface damage and maintain joint integrity under dynamic loads. With UNC coarse threads and Class 2B fit, installation efficiency is maximized while maintaining secure fastening in high-vibration environments. The external hex drive accommodates standard tools for rapid assembly in confined spaces, making it ideal for machinery leveling, framework alignment, and equipment mounting where precision adjustment is paramount.

Specification Summary & Compliance

This precision flange nut features 1/4"-20 UNC coarse threads with Class 2B thread fit for consistent engagement and reliable performance. Manufactured to inch system standards with 5/8" flange diameter and 0.09" flange thickness. The component maintains dimensional accuracy with 1/2" width across flats and 7/16" height. Compliant with RoHS 3 (2015/863/EU) standards under exemption 6(a) for lead as alloying element in steel, ensuring environmental responsibility while maintaining material performance characteristics.