S-94622A414 1/4"-28 x 1 1/32" AN4-10A 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 through cadmium plating, extending service life in harsh industrial environments
- Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant connections in critical assemblies
- High tensile strength rating of 120,000 psi provides dependable performance under heavy mechanical loads
- Optimized torque transmission via external hex drive design for secure installation and removal
- Enhanced material durability with Rockwell C26 hardness balancing strength and machinability
- Precision engineering compliance meeting AN4-10A specifications for aerospace and defense applications
- Versatile partial threading design allowing both clamping and alignment functions in assembled components
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 1/4"-28 UNF hex head screws deliver critical performance advantages through their material composition and structural design. The high-strength steel construction combined with cadmium plating addresses common failure points in corrosive environments, while the Class 3A thread fit ensures precise engagement that resists loosening under vibration. The fine thread configuration provides superior clamping force distribution, making these external hex drive screws ideal for precision equipment, machinery assemblies, and aerospace components where AN4-10A specification compliance is mandatory. The partially threaded design offers optimal grip length control for applications requiring both secure fastening and component alignment.
Specification Summary & Compliance
Manufactured to exacting inch system standards with Class 3A thread fit tolerances ensuring precision engagement. Thread specifications conform to UNF (Unified National Fine) standards with 1/4"-28 fine threading. Mechanical properties include 120,000 psi tensile strength and Rockwell C26 hardness. Complies with AN4-10A specifications for aerospace and defense applications, with cadmium plating meeting industry standards for corrosion protection. Right-hand threading and external hex drive design follow established industrial fastening protocols.
