S-92245A926 5/8"-11 x 3 1/2" FF-S-85, MS35307-470 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, ideal for harsh industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Optimized clamping force through partially threaded design for secure fastening in demanding applications
• Easy installation and removal with external hex drive and 15/16" head width for standard wrench compatibility
• Precision thread engagement with Class 2A UNC coarse threads providing consistent fit and reduced cross-threading risk
• Enhanced durability with Rockwell B74 hardness maintaining structural integrity through repeated use
• Regulatory compliance assurance meeting Fed. Spec. FF-S-85, RoHS 3, and REACH standards for quality and safety

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers exceptional engineering value across industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides superior protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor infrastructure projects. The 5/8"-11 UNC coarse thread configuration ensures rapid installation and reliable performance in high-vibration environments, while the partially threaded design concentrates clamping force precisely where needed. With its external hex drive and substantial 15/16" head width, this fastener offers excellent torque transmission for critical connections in structural steel, heavy machinery, and industrial equipment assembly, delivering long-term reliability in the most demanding operating conditions.

Specification Summary & Compliance

This industrial fastener maintains Class 2A thread fit tolerance for consistent engagement and meets UNC coarse thread standards with 5/8"-11 threading. Manufacturing complies with Fed. Spec. FF-S-85 (MS35307-470) requirements, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, confirming adherence to environmental and safety regulations for industrial components.