S-92200A725 4-40 x 5/16" NAS1352C04-5, 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 for long-term reliability in harsh environments
- Superior thread engagement with Class 3A fit ensuring precise, vibration-resistant connections in critical assemblies
- High tensile strength rating of 80,000 psi provides reliable performance under substantial mechanical loads
- Optimized drive efficiency through hex socket design preventing cam-out and enabling high torque application
- Full thread coverage along the 5/16" length maximizes grip strength and distribution across joined components
- Regulatory compliance assurance meeting NAS1352C04-5, RoHS 3, and REACH standards for quality and environmental safety
- Coarse UNRC threading enables rapid installation and reduced cross-threading risk in production environments
Professional Applications & Engineering Value
This 18-8 stainless steel socket head cap screw delivers critical performance advantages for precision assemblies requiring high tensile strength and corrosion resistance. The passivated finish significantly enhances surface durability while maintaining conductivity, ideal for electronic enclosures, aerospace components, and marine equipment. Engineered with Class 3A thread fit and UNRC coarse threading, it ensures secure fastening in vibration-prone applications while enabling rapid installation in high-volume manufacturing. The hex drive design provides superior torque transmission compared to standard fasteners, reducing installation time and tool wear. These socket head cap screws are particularly valuable in applications where space constraints require compact fastener solutions without compromising mechanical performance.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with Class 3A thread fit tolerance for superior engagement. Thread specification follows UNRC 4-40 coarse thread standards with fully threaded design. Compliance includes NAS1352C04-5 certification meeting Fed. Spec. FF-S-86 requirements. Environmental compliance verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance adherence for global industrial applications.
