S-92245A928 3/4"-10 x 2 1/4" FF-S-85, MS35307-488 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, ensuring long-term reliability in harsh industrial environments
• Exceptional tensile strength of 70,000 PSI provides reliable performance under heavy loads and high-stress applications
• Rockwell B74 hardness rating delivers excellent durability and resistance to wear and deformation
• Coarse UNC thread design enables faster installation and superior grip in various materials
• External hex drive with 1 1/8" head width allows for high-torque installation using standard tools
• Partially threaded design provides optimal clamping force distribution and vibration resistance
• Comprehensive compliance with RoHS 3 and REACH regulations ensures environmental responsibility and global market acceptance

Professional Applications & Engineering Value

This heavy-duty 3/4"-10 UNC hex head screw delivers critical engineering solutions for industrial applications demanding both strength and corrosion resistance. The passivated 18-8 stainless steel construction provides exceptional protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor infrastructure projects. The coarse UNC thread ensures rapid installation and superior holding power in structural assemblies, while the external hex drive accommodates high-torque applications without stripping. With 70,000 PSI tensile strength and Rockwell B74 hardness, this fastener maintains integrity under extreme mechanical stress, vibration, and thermal cycling conditions common in heavy machinery, construction equipment, and industrial manufacturing systems.

Specification Summary & Compliance

This 3/4"-10 UNC hex head screw features precise Class 2A thread fit tolerances for consistent performance and easy assembly. The fastener meets Fed. Spec. FF-S-85 (MS35307-488) manufacturing standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Manufactured in the inch system with dimensions including 2-1/4" length, 1-1/8" head width, and 15/32" head height, this partially threaded screw delivers reliable performance for industrial applications requiring certified quality and regulatory compliance.