S-98164A454 10-24 x 5/16" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction with passivated finish, ideal for harsh chemical and marine environments
• Exceptional thread engagement with Class 3A fit UNC coarse threading ensuring reliable fastening in vibration-prone applications
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial loads
• Optimized drive efficiency with 1/8" hex drive providing secure tool engagement and reduced cam-out risk
• Full-thread design maximizing grip length and load distribution across the entire fastener
• Regulatory compliance meeting ASME B18.3 specifications and environmental standards (RoHS 3, REACH)
• Rounded button head profile offering a finished appearance while minimizing snag hazards in assembled applications

Professional Applications & Engineering Value

This 316 stainless steel rounded head screw with 10-24 UNC coarse threading addresses critical challenges in corrosive and high-vibration environments. The combination of passivated finish and marine-grade stainless steel provides exceptional protection against saltwater, chemicals, and industrial atmospheres where ordinary fasteners would degrade. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of loosening under dynamic loads while maintaining consistent clamping force. Engineers specify this fully threaded hex drive screw for applications requiring both corrosion resistance and mechanical reliability, including marine hardware, chemical processing equipment, food processing machinery, and outdoor infrastructure where environmental compliance and long-term performance are paramount.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 standards with Class 3A thread fit precision and UNC coarse thread profile. The screw features a 10-24 thread size with 0.19" thread diameter and 5/16" length. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility, while the 70,000 psi tensile strength and Rockwell B55 hardness guarantee mechanical performance in demanding industrial applications.