S-92200A640 5/16"-18 x 2 1/4" MS16995-71, NAS1352C5-36, 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Precise Class 3A thread fit guarantees secure, vibration-resistant fastening in critical assemblies.
- Partially threaded design allows for controlled clamping force and simplified alignment in diverse applications.
- Standard hex drive socket head enables easy installation and removal with common tools, reducing assembly time.
- Compliance with major standards including MS16995-71, NAS1352C5-36, and NASM16995 ensures consistent quality and interchangeability.
- RoHS 3 and REACH compliance supports environmental regulations and safe usage in global markets.
Professional Applications & Engineering Value
This 5/16"-18 x 2-1/4" socket head cap screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. Made from 18-8 stainless steel with a passivated finish, it offers superior resistance to rust and chemicals, extending service life in machinery, automotive, and marine applications. The Class 3A thread fit and coarse UNRC thread provide tight tolerances for secure connections, minimizing maintenance in dynamic environments. Its partially threaded rod and hex drive design facilitate quick assembly, making it a reliable choice for OEMs and maintenance teams seeking durability and efficiency.
Specification Summary & Compliance
This screw features a Class 3A thread fit with UNRC coarse threads, ensuring precise dimensional accuracy per industry standards. It meets specifications including MS16995-71, NAS1352C5-36, and NASM16995, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its safety and environmental adherence for professional use.
