S-92245A815 5/8"-11 x 3" FF-S-85, MS35307-468 Mil. Spec. 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B74 hardness for heavy-duty applications
• Reliable coarse UNC threading with Class 2A fit ensures secure fastening and easy installation in demanding conditions
• Optimized partial threading design provides enhanced clamping force and vibration resistance where full threads aren't needed
• Heavy-duty external hex drive with 15/16" head width delivers superior torque transmission and installation efficiency
• Comprehensive regulatory compliance meets Fed. Spec. FF-S-85 (MS35307-468), RoHS 3, and REACH for global industrial acceptance
• Right-hand thread configuration with standard 5/8"-11 UNC pattern ensures compatibility with existing industrial equipment and systems

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers exceptional engineering value through its passivated 18-8 stainless steel composition, providing superior corrosion resistance that extends service life in demanding environments. The 5/8"-11 UNC coarse thread configuration with Class 2A thread fit ensures reliable performance in vibration-prone applications, while the partially threaded design concentrates clamping force precisely where needed. The external hex drive with substantial 15/16" head width enables high-torque installation without stripping, making it ideal for structural assemblies, heavy machinery, and industrial equipment requiring 70,000 psi tensile strength. Its compliance with stringent Fed. Spec. FF-S-85 guarantees consistent quality for critical applications in construction, manufacturing, and infrastructure projects.

Specification Summary & Compliance

This 5/8"-11 UNC hex head screw features precise Class 2A thread fit tolerance with coarse threading and partial threading over 1-1/2" minimum thread length. Manufactured to Fed. Spec. FF-S-85 (MS35307-468) with complete compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations. The inch system measurement ensures dimensional accuracy with 3" overall length, 15/16" head width, and 25/64" head height for consistent performance across industrial applications.