S-94622A448 1/2"-20 x 3 19/32" AN8-34A Army-Navy Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with cadmium plating for extended service life in harsh environments
• Exceptional tensile strength rated at 120,000 psi for reliable performance in high-stress applications
• Precision Class 3A thread fit ensures secure fastening and vibration resistance in critical assemblies
• External hex drive design provides maximum torque transmission and easy installation with standard tools
• Rockwell C26 hardness maintains structural integrity under heavy mechanical loads
• AN8-34A specification compliance guarantees consistent quality for aerospace and defense applications
• Optimized partial threading combines strong grip length with reduced weight for efficient fastening

Professional Applications & Engineering Value

This high-strength steel hex head screw delivers critical performance where reliability is non-negotiable. The 1/2"-20 UNF fine thread configuration provides superior resistance to loosening under vibration, while the cadmium plating offers essential protection against corrosion in demanding environments. Engineered to meet AN8-34A specifications, this fastener is ideal for aerospace assemblies, heavy machinery, and structural applications where Class 3A thread precision ensures perfect fitment. The external hex drive allows for high-torque installation without stripping, and the partial threading design optimizes clamping force distribution across critical joint interfaces.

Specification Summary & Compliance

Manufactured to AN8-34A specifications with Class 3A thread fit ensuring precision tolerance. Features UNF fine thread (1/2"-20) with right-hand direction and inch system measurements. The cadmium plated finish provides corrosion protection while maintaining electrical conductivity. Complies with aerospace standards and industrial fastener requirements for reliable performance in regulated applications.