S-92245A628 3/8"-16 x 1 1/2" FF-S-85, MS35307-364 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 for extended service life in harsh environments
• High tensile strength of 70,000 psi ensures reliable performance under significant mechanical stress and vibration
• External hex drive design provides secure tool engagement and efficient installation with standard wrenching tools
• Class 2A thread fit offers optimal clearance for quick assembly while maintaining secure fastening integrity
• Partially threaded shank allows for precise clamping force distribution and prevents joint loosening
• Compliance with Fed. Spec. FF-S-85 (MS35307-364) guarantees consistent quality and interchangeability for government and industrial applications
• RoHS 3 and REACH compliance ensures environmental responsibility and material safety for global supply chains

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw delivers exceptional engineering value through its passivated 18-8 stainless steel composition, providing critical corrosion resistance in manufacturing, marine, and chemical processing environments. The coarse thread spacing and right-hand thread direction enable rapid installation in structural assemblies and heavy equipment where vibration resistance is paramount. With Rockwell B74 hardness and 70,000 psi tensile strength, it maintains clamping force under dynamic loads while the partially threaded design concentrates stress away from shear planes. These industrial screws solve common fastener failure points by combining material durability with precise UNC thread form manufacturing, making them ideal for machinery, infrastructure, and OEM applications requiring Fed. Spec. FF-S-85 compliance.

Specification Summary & Compliance

Manufactured to Class 2A thread fit tolerances with 3/8"-16 UNC coarse threads and 1-1/2" length dimensions. Complies with Fed. Spec. FF-S-85 (MS35307-364) for dimensional consistency and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions. The inch system measurement and external hex drive configuration ensure compatibility with standard industrial tooling and replacement inventories.