S-94785A439 1/4"-28 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise thread engagement through Class 2B fine UNF threads ensuring reliable, vibration-resistant connections
- Optimal torque transmission with 7/16" square width providing excellent wrench grip and reduced slipping
- Enhanced durability from right-hand fine threading that maintains integrity under repeated adjustments
- External square drive compatibility allowing easy installation with standard tools in confined spaces
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements
- Dimensional stability with inch system precision ensuring consistent performance in mechanical assemblies
Professional Applications & Engineering Value
Engineered for demanding applications, this 1/4"-28 UNF square nut delivers exceptional value in machinery assembly, automotive systems, and industrial equipment where corrosion resistance and vibration resistance are critical. The 18-8 stainless steel material provides lasting protection against oxidation and chemical exposure, while the Class 2B thread fit ensures smooth engagement with mating components, reducing cross-threading risks in high-volume production environments. The external square drive design enables secure tool engagement for installations where hex drives are impractical, making these fine thread square nuts particularly valuable in retrofit applications and maintenance scenarios requiring reliable fastening performance.
Specification Summary & Compliance
This square nut maintains Class 2B thread fit tolerances per UNF standards with precise 1/4"-28 fine threading and dimensional accuracy of 7/16" width and 3/16" height. Manufactured to industry specifications for inch system fasteners, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for global supply chain integration.
