S-92200A540 1/4"-20 x 3/4" MS16995-50, NAS1352C4-12, NASM16995, FF-S-86 Mil. Spec. 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional 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 heavy loads and vibration, reducing failure risks.
• Precise Class 3A thread fit provides superior engagement and clamping force for secure, leak-free assemblies.
• Coarse UNRC right-hand threads enable quick installation and removal, saving time in maintenance and production.
• Fully threaded design offers consistent holding power along the entire length for versatile fastening applications.
• Hex socket drive (3/16") allows high-torque installation with standard tools, minimizing slippage and tool wear.
• Compliance with multiple standards including MS16995, NAS1352C4-12, and RoHS 3, ensuring quality and regulatory adherence.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in industrial and mechanical assemblies. Its corrosion-resistant material and passivated finish protect against rust and chemical exposure, making it suitable for marine, automotive, and food processing equipment. The Class 3A thread fit and coarse UNRC threads ensure tight, reliable connections that resist loosening under dynamic loads, while the fully threaded rod design provides uniform stress distribution. With an 80,000 psi tensile strength, it supports high-stress applications in machinery, aerospace, and structural frameworks, enhancing durability and reducing maintenance downtime.

Specification Summary & Compliance

This screw features a 1/4"-20 thread size with Class 3A thread fit and coarse thread spacing, ensuring precise dimensional accuracy per UNRC standards. It complies with specifications such as MS16995, NAS1352C4-12, NASM16995, and Fed. Spec. FF-S-86, and meets regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) for environmental safety.