S-94622A446 1/2"-20 x 2 19/32" AN8-24A Army-Navy Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from cadmium plating extends service life in harsh environments
• Precision Class 3A thread fit ensures secure, vibration-resistant connections in critical assemblies
• Exceptional 120,000 psi tensile strength provides reliable performance under heavy loads
• Rockwell C26 hardness maintains structural integrity and prevents thread deformation
• AN8-24A specification compliance guarantees aerospace-grade quality and reliability
• External hex drive design enables high-torque installation with standard tools
• Partial threading configuration optimizes grip length for precise clamping force distribution

Professional Applications & Engineering Value

This 1/2"-20 UNF steel hex head screw delivers critical performance where precision and reliability matter most. The fine thread spacing combined with Class 3A thread fit creates superior resistance to vibration loosening in aerospace, defense, and heavy machinery applications. The cadmium plating provides essential corrosion protection while maintaining electrical conductivity, making it ideal for grounding applications. With 120,000 psi tensile strength and Rockwell C26 hardness, this fastener maintains clamp load integrity under extreme conditions. The partial threading design ensures optimal stress distribution across the 1-13/16" grip length, preventing joint failure in dynamic load environments.

Specification Summary & Compliance

Manufactured to AN8-24A specifications with Class 3A thread fit precision in UNF fine thread format. Features right-hand threading with 0.5" thread diameter and 25/32" thread length. Constructed from high-strength steel with cadmium plating finish. Complies with aerospace standards and meets industrial requirements for high-performance hex head screws in critical applications.