S-94622A216 1/4"-28 x 1 17/32" AN4-14 Cotter Pin-Lockable Hex Head Screws
Cotter Pin-Lockable Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior corrosion resistance with cadmium-plated steel construction for extended service life in harsh environments
- Exceptional mechanical strength with 120,000 psi tensile strength and Rockwell C26 hardness for heavy-duty applications
- Precision thread engagement with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
- Secure locking mechanism through integrated 1/16" cotter pin hole preventing accidental loosening under dynamic loads
- Optimized load distribution with partial threading design maximizing grip length efficiency
- Industry-standard compatibility meeting AN4-14 specifications for aerospace and industrial applications
- Easy installation and maintenance with standard external hex drive accommodating common tools
Professional Applications & Engineering Value
Engineered for demanding aerospace and industrial applications, this 1/4"-28 UNF hex head screw addresses critical vibration and corrosion challenges. The cadmium-plated steel construction provides essential protection against environmental degradation, while the Class 3A thread fit ensures precise engagement in high-stress assemblies. The integrated cotter pin locking system offers reliable security against rotational loosening in dynamic environments, making it ideal for control surfaces, landing gear components, and heavy machinery. With fine thread spacing and partial threading, this fastener delivers superior clamping force distribution while maintaining structural integrity under 120,000 psi tensile loads.
Specification Summary & Compliance
This inch system fastener features 1/4"-28 UNF fine threads with Class 3A thread fit for precision tolerance. Manufacturing complies with AN4-14 specifications for aerospace and defense applications. The cadmium plating meets industry standards for corrosion protection, while material properties ensure compliance with mechanical requirements for high-strength applications. Thread dimensions maintain UNF standard spacing with right-hand orientation for consistent industry compatibility.
