S-92245A917 3/8"-16 x 3 1/2" FF-S-85, MS35307-372 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 tensile strength of 70,000 PSI ensures reliable performance under heavy loads and vibration
• Precise Class 2A thread fit provides smooth assembly and secure fastening with reduced risk of cross-threading
• External hex drive design enables high-torque installation using standard tools for efficient maintenance
• Partially threaded shank allows for controlled clamping force distribution across joined materials
• Comprehensive compliance with Fed. Spec. FF-S-85, RoHS 3, and REACH ensures regulatory acceptance
• Coarse UNC threading delivers faster installation and superior performance in softer materials

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw delivers critical engineering advantages for industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against chemical exposure and atmospheric corrosion, making it ideal for marine equipment, food processing machinery, and outdoor structural assemblies. The partially threaded design concentrates clamping force precisely where needed, preventing joint loosening in high-vibration environments. With its external hex drive and coarse UNC threading, installation efficiency is maximized while maintaining the 70,000 PSI tensile strength required for heavy-duty applications. These screws solve common fastener failure points by combining material durability with precision manufacturing standards.

Specification Summary & Compliance

This heavy-duty hex head screw features Class 2A thread fit tolerances with 3/8"-16 UNC coarse threading and partial threading over a 1" minimum length. Manufactured to exacting Fed. Spec. FF-S-85 (MS35307-372) requirements, it maintains dimensional precision throughout its 3 1/2" length. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international quality standards for industrial fasteners.