S-94622A236 3/8"-24 x 2 5/64" AN6-20 Cotter Pin-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
• Corrosion-resistant cadmium plating on steel provides enhanced durability and longevity in harsh industrial environments.
• Precise Class 3A thread fit offers superior engagement and vibration resistance, maintaining secure connections in critical assemblies.
• Cotter pin locking mechanism with a 3/32" pin diameter prevents loosening from dynamic loads, ideal for safety-critical applications.
• External hex drive design allows for easy installation and removal with standard tools, improving maintenance efficiency.
• Fine UNF thread pattern ensures tighter fastening and better load distribution compared to coarse threads.
• AN6-20 specification compliance guarantees consistent quality and interoperability in aerospace and industrial systems.

Professional Applications & Engineering Value

This cadmium-plated steel hex head screw is engineered to address common challenges in demanding sectors like aerospace, machinery, and heavy equipment. The Class 3A thread fit and fine UNF threading minimize backlash and provide excellent resistance to vibration, crucial for assemblies subject to constant motion or thermal cycling. The cotter pin locking feature adds an extra layer of security, preventing accidental disassembly in high-vibration environments. With a Rockwell C26 hardness and robust 120,000 psi tensile strength, it withstands extreme mechanical stresses without deformation. Its partially threaded design and external hex drive simplify alignment and torque application, reducing installation time and enhancing operational reliability in industrial fastening and aircraft applications.

Specification Summary & Compliance

This screw adheres to AN6-20 specifications, with precise Class 3A thread fit and UNF fine thread standards ensuring dimensional accuracy. It features a right-hand thread direction, partial threading, and critical dimensions including a thread size of 3/8"-24, grip length of 1 7/16", and overall length of 2 5/64". The cadmium-plated steel construction meets common industry requirements for corrosion resistance and mechanical performance, supporting compliance with RoHS and REACH regulations for environmental safety.