S-94622A248 1/2"-20 x 3 19/32" AN8-34 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 plating for extended service life in harsh industrial environments
- Exceptional load-bearing capability with 120,000 psi tensile strength for high-stress applications
- Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections
- Secure locking mechanism featuring cotter pin compatibility for critical safety applications
- Optimized torque transmission through external hex drive design for efficient installation
- Enhanced durability with Rockwell C26 hardness maintaining structural integrity under repeated stress
- Versatile partial threading allowing precise grip length control in assembled components
Professional Applications & Engineering Value
This cadmium-plated steel hex head screw delivers exceptional performance in demanding industrial settings where vibration resistance and structural integrity are paramount. The 1/2"-20 UNF fine threading with Class 3A fit provides superior thread engagement, effectively preventing loosening in high-vibration environments such as heavy machinery, construction equipment, and aerospace assemblies. The cotter pin locking mechanism offers an additional safety layer for critical connections, while the partial threading design allows engineers to precisely control clamping force distribution. With 120,000 psi tensile strength and corrosion-resistant cadmium plating, this fastener solves common challenges of joint failure and environmental degradation in industrial applications.
Specification Summary & Compliance
Manufactured to exacting AN8-34 specifications, this hex head screw features precision Class 3A thread fit with UNF fine threading standards. The component maintains strict dimensional accuracy with 1/2"-20 thread size, 3/32" cotter pin diameter compatibility, and controlled Rockwell C26 hardness. The fastener complies with military-grade AN standards for aerospace and defense applications, ensuring reliable performance in critical engineering systems where precision and durability are non-negotiable requirements.
