S-97654A656 3/8"-16 x 1/2" ASME B18.3 Stainless Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections
• Integrated flange design eliminates need for separate washers, reducing assembly time and parts count
• High-torque hex drive (7/32") provides secure installation and prevents stripping during high-stress applications
• Wide button head profile offers attractive finish and improved load distribution
• Full compliance with ASME B18.3, RoHS 3, and REACH standards for guaranteed quality and environmental safety

Professional Applications & Engineering Value

This 3/8"-16 UNC flanged hex drive screw delivers critical engineering advantages for industrial assembly challenges. The 18-8 stainless steel composition provides excellent corrosion resistance in demanding environments while maintaining 70,000 psi tensile strength for structural integrity. The Class 3A thread fit ensures precise mating with nuts and tapped holes, preventing loosening under vibration - a common failure point in machinery and equipment. The integrated flange design distributes clamping force over a wider area (0.813" diameter), protecting softer materials and eliminating washer inventory. Combined with the hex drive for high-torque installation, this fully threaded fastener is engineered for automotive, manufacturing, and heavy equipment applications where reliability and corrosion resistance are paramount.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit per UNC specifications and coarse threading for rapid assembly. The 1/2" length and 0.375" thread diameter maintain dimensional accuracy as specified in ASME B18.3. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets. The right-hand threaded design with fully threaded shank provides consistent performance in industrial fastening applications.