S-90475A110 1/4"-20 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Black-oxide steel coating provides reliable protection against rust and environmental wear, extending service life in harsh industrial settings.
• Space-Saving Thin Profile: Reduced height (5/32") allows for installation in tight or confined assembly spaces without compromising strength.
• Secure Thread Engagement: Class 2B thread fit ensures consistent, reliable fastening with standard bolts, minimizing the risk of loosening under vibration.
• Quick Assembly Efficiency: Coarse UNC 1/4"-20 threads enable faster installation and disassembly, reducing labor time in high-volume production lines.
• Durable External Hex Drive: Standard 7/16" hex width offers excellent torque transfer with common tools, preventing stripping and ensuring repeatable use.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards, ensuring safety and environmental responsibility for global supply chains.
• Right-Hand Thread Convenience: Universal threading direction simplifies integration with existing inch-system components and reduces assembly errors.

Professional Applications & Engineering Value

Engineered for demanding industrial assembly and machinery applications, this 1/4"-20 UNC hex nut combines black-oxide steel durability with a thin profile design to address common challenges like corrosion, space constraints, and vibration-induced loosening. The coarse thread spacing and Class 2B thread fit ensure rapid, secure fastening in automotive, metalworking, and equipment manufacturing, where consistent performance under stress is critical. Its external hex drive allows for high-torque application with standard wrenches, streamlining maintenance and reducing downtime. Ideal for corrosion-resistant fastening in outdoor or humid environments, this nut delivers long-term reliability while complying with international environmental standards.

Specification Summary & Compliance

This thin hex nut adheres to UNC coarse thread standards with a 1/4"-20 thread size and Class 2B thread fit for precise dimensional accuracy. Manufactured from black-oxide steel with a width of 7/16" and height of 5/32", it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring suitability for regulated industrial and export markets.