S-92200A544 1/4"-20 x 1 1/4" MS16995-53, NAS1352C4-20, NASM16995, FF-S-86 Mil. Spec. 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Superior load-bearing capability with 80,000 PSI tensile strength, ensuring reliable performance under high-stress applications.
• Precise and secure fastening achieved through Class 3A thread fit, minimizing the risk of loosening in critical assemblies.
• Easy installation and removal with a standard hex drive socket head, allowing for efficient torque application in confined spaces.
• Broad compatibility with 1/4"-20 coarse UNRC threads, making it suitable for a wide range of industrial equipment and machinery.
• Full threading for maximum grip along the entire 1-1/4" length, providing consistent clamping force across the joint.
• Regulatory peace of mind with compliance to RoHS 3 and REACH, meeting international environmental and safety standards.

Professional Applications & Engineering Value

This 18-8 stainless steel socket head cap screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosive wear. The Class 3A thread fit ensures tight tolerances, reducing the need for frequent retightening in dynamic applications like machinery, automotive assemblies, and precision tooling. Its passivated finish enhances the innate corrosion resistance of stainless steel, extending service life in humid or chemically aggressive settings. The hex drive socket head design allows for high torque application without slippage, making it ideal for space-constrained environments. Fully compliant with key standards including MS16995-53 and NAS1352C4-20, this screw delivers consistent performance in aerospace, manufacturing, and heavy equipment sectors where reliability is critical.

Specification Summary & Compliance

This socket head cap screw features a 1/4"-20 coarse UNRC thread with Class 3A fit for precise engagement, and is fully threaded along its 1-1/4" length. It meets stringent specifications including MS16995-53, NAS1352C4-20, NASM16995, and FF-S-86. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations.