S-90762A112 1/4"-20 Fed. Spec. FF-N-836, MS51971-1, Fed. Spec. QQ-P-35 Hex Nuts
Hex 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 thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- Reliable thread engagement with Class 2B thread fit ensuring consistent, vibration-resistant fastening
- Quick installation facilitated by UNC coarse threading that reduces cross-threading risks
- Enhanced durability from compliance with Fed. Spec. FF-N-836, MS51971-1, and QQ-P-35 standards
- Environmental compliance with RoHS 3 and REACH regulations for safe, sustainable usage
- Standard external hex drive design for universal tool compatibility and easy torque application
- Precise dimensional stability with 7/16" width and 7/32" height for consistent performance
Professional Applications & Engineering Value
This 1/4"-20 UNC hex nut delivers exceptional engineering value in demanding applications where corrosion resistance and thread reliability are critical. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor equipment assemblies. The Class 2B thread fit with coarse UNC threading ensures rapid installation while maintaining vibration resistance in high-stress environments. The standard hex profile and external hex drive design enable efficient torque application with common tools, reducing assembly time in manufacturing, construction, and machinery maintenance applications where consistent performance under load is essential.
Specification Summary & Compliance
This hex nut maintains Class 2B thread fit tolerance per UNC standards with precise 1/4"-20 coarse threading. Manufacturing complies with Fed. Spec. FF-N-836, MS51971-1, and QQ-P-35 specifications, ensuring dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming restriction of hazardous substances. The right-hand thread direction and standard 7/16" width x 7/32" height dimensions provide consistent interoperability with matching components.
