S-92200A588 1/4"-28 x 1 1/4" MS16996-25, NAS1351C4-20, NASM16996, FF-S-86 Mil. Spec. 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional tensile strength of 80,000 PSI ensures reliable performance under high-stress applications
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies
• Fine UNRF threading offers improved load distribution and reduced risk of loosening in dynamic conditions
• Standard hex socket drive allows for easy installation with common tools, minimizing assembly time
• Full threading along the entire length enables flexible positioning and uniform clamping force
• Compliance with major industry standards including MS16996-25, NAS1351C4-20, and NASM16996 guarantees quality and interoperability

Professional Applications & Engineering Value

This socket head cap screw delivers critical engineering value in demanding applications where reliability is paramount. Manufactured from 18-8 stainless steel with a passivated finish, it effectively resists corrosion in chemical, marine, and outdoor settings. The 1/4"-28 UNRF fine thread with Class 3A fit ensures minimal backlash and superior vibration resistance, making it ideal for precision machinery, aerospace components, and automated systems. Its 80,000 PSI tensile strength supports heavy-duty assemblies without failure, while the hex socket drive facilitates installation in confined spaces. Fully compliant with RoHS 3 and REACH, it meets stringent environmental and safety regulations for global industrial use.

Specification Summary & Compliance

This socket head cap screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and UNRF fine threading per inch system requirements. It conforms to specifications such as MS16996-25, NAS1351C4-20, and NASM16996, ensuring consistency with industry benchmarks. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial markets.