S-94855A279 2-56 Square Nuts
Square Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
- Exceptional holding power provided by coarse UNC threads that resist loosening under vibration and heavy loads
- Precise thread engagement with Class 2B fit ensuring reliable fastening and reduced risk of cross-threading
- Easy installation and removal with external square drive design allowing secure tool grip and high torque application
- Compact 3/16" width profile enabling use in space-constrained applications while maintaining full strength
- Right-hand thread orientation providing standard compatibility with common industrial equipment and fasteners
- Full regulatory compliance meeting RoHS 3 and REACH standards for global manufacturing applications
Professional Applications & Engineering Value
This 2-56 UNC square nut delivers critical engineering value through its zinc-plated steel construction and coarse thread design, specifically engineered to solve common industrial fastening challenges. The combination of Class 2B thread fit and external square drive provides reliable performance in high-vibration environments where loosening prevention is essential. These industrial square nuts are particularly valuable in machinery assembly, electrical enclosures, and automotive applications where their 3/16" width offers space-efficient solutions without compromising strength. The right-hand thread configuration ensures compatibility with standard components, while the protective zinc plating resists corrosion in demanding operating conditions, making these heavy-duty square nuts ideal for long-term reliability in manufacturing and maintenance operations.
Specification Summary & Compliance
This square nut features 2-56 UNC coarse threads with Class 2B thread fit precision manufactured to inch system standards. The nut measures 3/16" in width and 1/16" in height with external square drive configuration. Manufacturing and material compliance includes RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with 224 SVHC substances monitored as of June 2022, ensuring environmental responsibility and global market acceptance for industrial fastener applications.
