S-92562A605 1/4"-28 x 1 1/2" MS16998-47, NAS1351-4-24P Mil. Spec. Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with cadmium plating that protects against harsh industrial environments
• Exceptional tensile strength of 160,000 PSI ensures reliable performance under high-stress conditions
• Precision Class 3A thread fit provides secure, vibration-resistant connections in critical assemblies
• Fine thread spacing offers improved adjustment accuracy and better load distribution
• Partially threaded design allows for optimal clamping force concentration where needed most
• Rockwell C39 hardness maintains structural integrity and prevents deformation during installation
• Hex socket drive enables high-torque installation in confined spaces with standard tools

Professional Applications & Engineering Value

These cadmium-plated alloy steel socket head cap screws deliver critical performance advantages in demanding industrial applications where failure is not an option. The combination of Class 3A UNRF fine threads and 160,000 PSI tensile strength addresses common engineering challenges including vibration loosening, material fatigue, and precise alignment requirements. The partially threaded configuration concentrates clamping force exactly where needed, while the cadmium surface treatment provides essential corrosion protection in manufacturing environments, chemical processing equipment, and heavy machinery. These high-strength screws are engineered to maintain integrity under extreme mechanical stress, making them ideal for aerospace components, precision instruments, and automotive assemblies where reliability and dimensional stability are paramount.

Specification Summary & Compliance

This socket head cap screw features 1/4"-28 UNRF Class 3A threads with fine thread spacing and a minimum thread length of 1 inch. Manufactured to exacting dimensional tolerances, the fastener complies with MS16998-47 specifications where identified as NAS1351-4-24P, ensuring consistent quality and performance. The cadmium-plated alloy steel construction meets industry standards for high-strength applications, with material properties including Rockwell C39 hardness and 160,000 PSI tensile strength. These precision fasteners are suitable for use in regulated industries requiring documented compliance with established engineering specifications.