S-94622A425 5/16"-24 x 2 3/32" AN5-20A Army-Navy Medium-Strength Steel Hex Head Screws
Army-Navy Medium-Strength Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with cadmium plating for extended service life in harsh environments
- Exceptional mechanical strength with 120,000 psi tensile strength and Rockwell C26 hardness for high-stress applications
- Precise thread engagement with Class 3A fit and UNF fine threads ensuring reliable, vibration-resistant connections
- Optimized installation efficiency featuring external hex drive and standard 1/2" head width for easy tool access
- Enhanced design flexibility with partial threading allowing for both clamping and alignment functions
- Proven aerospace compliance meeting AN5-20A specifications for critical engineering applications
- Dimensional consistency manufactured to inch system standards for seamless integration with existing assemblies
Professional Applications & Engineering Value
This 5/16"-24 UNF steel hex head screw delivers critical performance where reliability is non-negotiable. The cadmium plated finish provides essential corrosion protection in aerospace environments while maintaining electrical conductivity. With Class 3A thread fit and UNF fine threading, it prevents loosening under vibration - a crucial advantage in aircraft assemblies and precision machinery. The partial threading design allows the unthreaded shank to function as a precision pilot, while the threaded portion develops full clamping force. Meeting AN5-20A specifications, this fastener is engineered for structural applications where failure is not an option, from engine components to critical industrial equipment requiring 120,000 psi tensile strength.
Specification Summary & Compliance
Manufactured to inch system dimensions with Class 3A thread fit tolerance for precision assembly. Thread specifications conform to UNF 5/16"-24 standards with right-hand orientation and fine spacing. Complies with AN5-20A aerospace specification requirements. The cadmium plating meets industry standards for corrosion protection while maintaining compatibility with various substrates. Material properties verified to achieve specified Rockwell C26 hardness and 120,000 psi tensile strength values.
