S-94622A416 1/4"-28 x 1 17/32" AN4-14A Army-Navy Medium-Strength Steel Hex Head Screws
Army-Navy Medium-Strength Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with cadmium plating, extending service life in harsh industrial environments
- High tensile strength of 120,000 PSI ensures reliable performance under extreme mechanical loads
- Precision Class 3A thread fit guarantees secure, vibration-resistant connections in critical assemblies
- External hex drive design allows for high-torque installation with standard tools, reducing assembly time
- Partially threaded shank provides optimal grip length control for consistent clamping force distribution
- AN4-14A specification compliance meets rigorous aerospace and defense industry standards
- Fine UNF thread spacing delivers enhanced sealing capability and superior resistance to loosening
Professional Applications & Engineering Value
This 1/4"-28 UNF hex head screw delivers exceptional engineering value through its steel construction and cadmium plating, specifically engineered to address common industrial fastening challenges. The combination of 120,000 PSI tensile strength and Rockwell C26 hardness provides reliable performance in high-stress applications where fastener failure is not an option. The Class 3A thread fit ensures precise engagement in aircraft assemblies, heavy machinery, and precision equipment, minimizing the risk of vibration-induced loosening. The partially threaded design with controlled grip length allows engineers to optimize clamping force distribution while the external hex drive facilitates efficient installation in confined spaces, making it ideal for industrial fastening applications requiring both strength and precision.
Specification Summary & Compliance
This hex head screw features 1/4"-28 UNF fine threads with Class 3A fit for precision threading applications. Manufactured to AN4-14A specifications with inch system measurements, including 1 17/32" length and 1 1/16" grip length. The right-hand thread direction and partial threading provide controlled fastening engagement. Meets industry standards for high-strength applications with verified 120,000 PSI tensile strength and Rockwell C26 hardness ratings.
