S-92562A146 1/4"-28 x 2 1/4" MS16998-50, NAS1351-4-36P 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
- Exceptional tensile strength of 160,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from cadmium plating extends service life in harsh industrial environments, minimizing maintenance needs.
- Precision Class 3A thread fit provides tight tolerances and secure fastening, enhancing assembly integrity and vibration resistance.
- Fine thread spacing offers improved adjustment control and better load distribution compared to coarse threads.
- Partially threaded design allows for unthreaded shank sections to bear shear loads effectively, increasing joint stability.
- Hex socket drive enables easy installation in confined spaces with standard tools, boosting efficiency during assembly.
- High hardness rating (Rockwell C39) ensures durability and wear resistance, maintaining thread integrity over repeated use.
Professional Applications & Engineering Value
This cadmium-plated alloy steel socket head cap screw is engineered to address critical challenges in industrial fastening, such as vibration loosening and environmental degradation. The Class 3A UNRF fine thread configuration delivers precise engagement and superior clamping force, ideal for machinery, aerospace, and automotive assemblies where reliability is paramount. Its partially threaded rod type design minimizes stress concentration, while the corrosion-resistant plating protects against moisture and chemicals. By meeting stringent MS16998-50 specifications (referencing NAS1351-4-36P), this fastener ensures compliance with high-performance standards, reducing downtime and enhancing operational safety in demanding applications.
Specification Summary & Compliance
This socket head cap screw features a 1/4"-28 UNRF thread with Class 3A fit for high precision, manufactured to MS16998-50 NAS1351-4-36P. It adheres to inch system measurements, includes fine thread spacing, and is cadmium-plated for durability. The product complies with industry standards for tensile strength and hardness, ensuring reliable performance in regulated environments.
