S-92562A138 1/4"-20 x 7/8" MS16997-61, NAS1352-4-14P Mil. Spec. Alloy Steel Socket Head Screws
Mil. Spec. Alloy Steel Socket 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
- 160,000 psi tensile strength ensures reliable performance under extreme mechanical loads and vibration
- Cadmium-plated alloy steel construction provides superior corrosion resistance for extended service life in harsh environments
- Class 3A thread fit delivers precise, vibration-resistant connections with minimal backlash
- Rockwell C39 hardness rating maintains thread integrity and prevents stripping during repeated installations
- Hex socket drive design allows high torque application with standard industrial tools
- UNRC coarse threading enables quick assembly and superior resistance to loosening
- Full thread coverage ensures maximum grip strength along the entire fastener length
Professional Applications & Engineering Value
This cadmium-plated alloy steel socket head cap screw addresses critical engineering challenges in heavy machinery, aerospace assemblies, and precision equipment where vibration resistance and high tensile strength are paramount. The combination of Class 3A thread fit with UNRC coarse threads prevents spontaneous loosening under dynamic loads while facilitating rapid assembly in production environments. The hex drive system accommodates high torque requirements without cam-out, making it ideal for confined spaces where wrench clearance is limited. Engineered to withstand extreme mechanical stress, this fully threaded screw maintains clamping force integrity in critical joints, reducing maintenance frequency and downtime in industrial operations.
Specification Summary & Compliance
This fastener maintains Class 3A thread fit per UNRC standards with coarse thread spacing (1/4"-20) and 7/8" length tolerance. Manufactured to meet MS16997-61 specifications and NAS1352-4-14P standards, ensuring compliance with aerospace and industrial quality requirements. The cadmium plating provides corrosion protection while maintaining dimensional accuracy for precision applications.
