S-94902A101 1/4"-20 Flange Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution with 19/32" flange diameter to prevent surface damage and reduce the need for separate washers
• Superior corrosion resistance from black-phosphate steel coating, extending service life in demanding industrial environments
• High-strength performance meeting Grade 8 standards for reliable use in heavy-duty and high-vibration applications
• Quick installation with standard external hex drive and coarse UNC threads that resist cross-threading
• Precise thread engagement with Class 2B fit ensuring consistent clamping force and reduced loosening risks
• Regulatory compliance with RoHS 3 and REACH standards for safe use in global industrial supply chains
• Versatile compatibility with 1/4"-20 UNC coarse threaded bolts commonly used in machinery and equipment assembly

Professional Applications & Engineering Value

This Grade 8 flange nut delivers critical engineering advantages through its black-phosphate steel construction and integrated flange design. The 19/32" flange diameter distributes clamping force over a wider surface area, preventing damage to soft materials and eliminating the cost of additional washers. The UNC coarse thread profile with Class 2B fit ensures rapid assembly in high-volume production environments while maintaining vibration resistance. Ideal for heavy equipment, automotive systems, and structural frameworks, this nut combines the strength of Grade 8 fasteners with the corrosion protection needed for extended service in harsh conditions. The external hex drive provides reliable torque application using standard tools, reducing installation time and improving workplace efficiency.

Specification Summary & Compliance

This flange nut features precise 1/4"-20 UNC coarse threads with Class 2B thread fit per ASME standards, ensuring consistent performance with matching bolts. Manufacturing complies with Grade 8 strength requirements for minimum 150 ksi tensile strength. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, confirming absence of restricted substances for industrial applications worldwide.