S-98164A710 3/8"-16 x 3 1/2" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish for extended service life in harsh environments
• Precise, reliable fastening ensured by Class 3A thread fit and UNC coarse threading for secure connections in industrial applications
• High-strength performance with 70,000 psi tensile strength to withstand demanding mechanical loads
• Efficient installation and removal through the 7/32" hex drive design, providing excellent torque transmission
• Maximum grip and holding power from fully threaded design along the entire 3 1/2" length
• Low-profile, rounded button head offers a finished appearance while minimizing snagging hazards
• Regulatory compliance assurance meeting ASME B18.3 manufacturing standards and environmental regulations (RoHS 3, REACH)

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 3/8"-16 UNC Rounded Head Screws deliver exceptional performance where corrosion resistance and mechanical reliability are critical. The combination of 316 Stainless Steel material and passivated finish provides superior protection against chemical exposure, saltwater, and industrial atmospheres, significantly extending service life in marine, chemical processing, and food industry applications. The Class 3A thread fit with coarse UNC threading ensures precise engagement and vibration resistance, while the hex drive design allows for high-torque installation in confined spaces. These fully threaded screws maintain consistent clamping force across the entire 3 1/2" length, making them ideal for heavy-duty assembly, machinery fabrication, and structural applications requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This rounded head screw features precise Class 3A thread fit with 3/8"-16 UNC coarse threading and complies with ASME B18.3 manufacturing specifications. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) standards for chemical safety. Manufactured from 316 Stainless Steel with passivated finish, these screws deliver consistent performance with 70,000 psi tensile strength and fully threaded design for maximum fastening reliability.