S-92245A724 1/2"-13 x 2 1/4" FF-S-85, MS35307-416 Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• High tensile strength of 70,000 PSI provides dependable load-bearing capacity for demanding industrial applications.
• External hex drive with 3/4" head width allows for easy installation and high torque application with standard tools.
• Class 2A thread fit with UNC coarse threading ensures smooth assembly and reliable fastening in various materials.
• Partially threaded design offers optimal grip and clamping force where full threading isn't required.
• Rockwell B74 hardness rating maintains thread integrity and prevents stripping during repeated use.
• Compliance with major industry standards including Fed. Spec. FF-S-85 (MS35307-416), RoHS 3, and REACH for guaranteed quality and environmental safety.

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw delivers exceptional engineering value through its passivated 18-8 stainless steel composition, specifically engineered to solve critical industrial fastening challenges. The material's inherent corrosion resistance combined with the external hex drive design addresses common issues of fastener degradation in moist or chemical-exposed environments while ensuring secure installation in high-vibration applications. The partially threaded configuration provides superior clamping force for machinery assembly, structural frameworks, and heavy equipment where vibration resistance and joint integrity are paramount. With coarse UNC threading and Class 2A thread fit, it offers rapid installation in steel, aluminum, and composite materials while maintaining consistent performance in temperature-fluctuating environments common in manufacturing, construction, and marine applications.

Specification Summary & Compliance

This hex head screw maintains precise Class 2A thread fit tolerances with 1/2"-13 UNC coarse thread specifications and 2 1/4" length. Manufacturing complies with Fed. Spec. FF-S-85 (MS35307-416) ensuring consistent dimensional accuracy and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental and safety regulations for industrial use.