S-92200A630 5/16"-18 x 1" MS16995-66, NAS1352C5-16, NASM16995, 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
- Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh environments and extended service life.
- High tensile strength of 80,000 psi ensures reliable performance under significant load and stress in critical assemblies.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant fastening in high-performance machinery.
- Standard hex socket drive (1/4") allows for high torque application and easy installation in confined spaces.
- Coarse UNRC thread (5/16"-18) enables quicker assembly and reduced cross-threading risk compared to fine threads.
- Fully threaded design offers consistent clamping force along the entire 1" length for uniform load distribution.
- Compliance with major standards including MS16995 and NAS1352C guarantees quality and interchangeability for aerospace and defense applications.
Professional Applications & Engineering Value
This Socket Head Cap Screw is engineered to address common industrial challenges such as vibration loosening and corrosive degradation. Manufactured from 18-8 Stainless Steel with a passivated finish, it provides excellent resistance to oxidation and chemical exposure, making it suitable for machinery, automotive, and aerospace assemblies. The Class 3A thread fit and coarse UNRC thread form ensure a secure, reliable connection that maintains integrity under dynamic loads and thermal cycling. Its hex drive style and fully threaded shank facilitate efficient installation and consistent clamping in high-stress applications, reducing maintenance needs and downtime.
Specification Summary & Compliance
This screw features a 5/16"-18 coarse thread with Class 3A fit per UNRC standards, ensuring precise dimensional accuracy. It meets specifications including MS16995-66, NAS1352C5-16, NASM16995, and Fed. Spec. FF-S-86. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental adherence for global industrial use.
