S-92245A957 3/8"-24 x 3" FF-S-85, MS35308-370 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, ensuring long-term durability in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B74 hardness for reliable performance under high-stress conditions
• Precise thread engagement through Class 2A thread fit and UNF fine threads, providing secure fastening and vibration resistance
• Optimized installation efficiency with external hex drive and standard 9/16" head width for easy tool access and torque application
• Enhanced design flexibility with partially threaded shank, allowing for controlled clamping force in specific assembly applications
• Regulatory compliance assurance meeting Fed. Spec. FF-S-85 (MS35308-370), RoHS 3, and REACH standards for quality and environmental safety
• Right-hand thread direction with fine thread spacing for improved adjustment precision and reduced loosening in dynamic applications

Professional Applications & Engineering Value

This 3/8"-24 UNF hex head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. Manufactured from passivated 18-8 stainless steel, it effectively combats oxidation and chemical exposure in marine, chemical processing, and outdoor industrial equipment. The partially threaded design combined with Class 2A thread fit ensures precise load distribution, preventing joint failure in vibration-prone assemblies. With its external hex drive and standardized dimensions, it enables rapid installation in confined spaces while maintaining 70,000 psi tensile strength for heavy-duty structural connections. These characteristics make it ideal for machinery frames, transportation equipment, and infrastructure projects requiring reliable, long-lasting fastening solutions.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerance with 3/8"-24 UNF fine threads and right-hand direction. Manufacturing complies with Fed. Spec. FF-S-85 (MS35308-370) for dimensional consistency and performance reliability. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to strict environmental and safety regulations for industrial use.