S-92200A655 5/16"-24 x 1 1/4" MS16996-33, NAS1351C5-20, NASM16996, FF-S-86 Mil. Spec. 18-8 Stainless Steel Socket Head Screws
Mil. Spec. 18-8 Stainless 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 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Superior thread engagement and vibration resistance due to Class 3A fine thread fit and UNRF thread form
- High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and stress
- Precise hex drive compatibility with 1/4" drive size for secure installation and reduced tool slippage
- Full threading along the 1-1/4" length provides maximum grip and adjustment flexibility in assemblies
- Compliance with multiple aerospace and federal specifications including MS16996-33, NAS1351C5-20, and NASM16996
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for global supply chain suitability
Professional Applications & Engineering Value
This socket head cap screw is engineered to address critical fastening challenges in demanding sectors such as aerospace, machinery, and precision equipment. The 18-8 stainless steel material, combined with a passivated finish, delivers outstanding resistance to corrosion and chemical exposure, extending service life in humid or corrosive settings. The Class 3A UNRF fine thread ensures tight tolerances and superior fatigue resistance, minimizing loosening under dynamic loads. Its fully threaded design and hex socket drive allow for easy installation in confined spaces, providing reliable clamping force for high-stress assemblies where vibration and thermal cycling are concerns.
Specification Summary & Compliance
This screw features a 5/16"-24 UNRF fine thread with Class 3A thread fit for precision alignment and load distribution. It complies with MS16996-33, NAS1351C5-20, and NASM16996 specifications, ensuring adherence to rigorous aerospace and federal standards. Additionally, the product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.
