S-92562A139 1/4"-20 x 2 1/4" MS16997-67, NAS1352-4-36P 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 corrosion resistance with cadmium plating, extending service life in harsh industrial environments
- High tensile strength of 160,000 psi ensures reliable performance under extreme mechanical stress
- Precise Class 3A thread fit guarantees secure, vibration-resistant connections in critical assemblies
- Rockwell C39 hardness provides superior wear resistance and durability for repeated use
- 3/16" hex drive design enables easy installation with standard tools while preventing stripping
- Partially threaded shank allows for optimal clamp load distribution and precise joint positioning
- UNRC coarse thread profile ensures quick assembly and reduced cross-threading risks
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this socket head cap screw delivers critical performance where failure is not an option. The cadmium-plated alloy steel construction provides essential corrosion protection for machinery exposed to moisture, chemicals, or outdoor elements. With its 160,000 psi tensile strength and Rockwell C39 hardness, this fastener maintains integrity under heavy loads and vibration, making it ideal for heavy-duty equipment, automotive assemblies, and aerospace components. The Class 3A thread fit and UNRC coarse threads ensure precise engagement in blind holes and simplify maintenance operations. These industrial fasteners solve common engineering challenges by combining high-strength materials with precision manufacturing for reliable, long-term fastening solutions.
Specification Summary & Compliance
This 1/4"-20 socket head cap screw features Class 3A thread fit with UNRC coarse threads in a right-hand direction. Manufactured to exacting inch system dimensions including 2-1/4" length and 3/16" hex drive. The product complies with MS16997-67 specifications where identified as NAS1352-4-36P, ensuring consistent quality and performance for critical applications. Material composition and manufacturing processes adhere to industry standards for high-strength industrial fasteners.
