S-92210A443 3/8"-24 x 3" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
• Precise thread engagement with Class 3A fit and UNF fine threads ensuring vibration resistance and secure fastening
• Efficient installation and removal through 7/32" hex drive design providing positive torque transmission
• Full thread coverage along the 3" length for maximum grip and adjustability in deep applications
• Standardized flat head profile with 82° countersink for flush mounting and streamlined aesthetics
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards (RoHS 3, REACH)

Professional Applications & Engineering Value

These 3/8"-24 UNF flat head socket cap screws deliver critical performance in precision assemblies where corrosion resistance, high tensile strength, and reliable thread engagement are paramount. Manufactured from 18-8 Stainless Steel with a passivated finish, they effectively resist chemical exposure and galvanic corrosion in marine, chemical processing, and outdoor equipment. The Class 3A thread fit and fine thread spacing provide superior clamp load retention under vibration, making them ideal for machinery, automotive subsystems, and precision instruments. The hex drive and fully threaded design enable quick installation in confined spaces while maintaining consistent torque values. These industrial fasteners solve common failure points by combining material durability with precision threading for long-term structural integrity.

Specification Summary & Compliance

This flat head screw features inch measurements with Class 3A thread fit per UNF standards, ensuring tight tolerances and reliable performance. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions.