S-98164A445 6-32 x 1 1/2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 70,000 PSI tensile strength and Rockwell B55 hardness for reliable load-bearing performance
• Precision thread engagement through Class 3A fit and UNC coarse threading, ensuring vibration resistance and reduced assembly time
• Optimized drive efficiency with 5/64" hex drive and rounded button head design, preventing cam-out and enabling flush installations
• Full-threaded design providing consistent clamping force along the entire 1-1/2" length for maximum joint integrity
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards (RoHS 3, REACH) for global industrial use
• Right-hand thread direction with standardized UNC profile for compatibility with existing industrial equipment and tooling

Professional Applications & Engineering Value

This 316 stainless steel rounded head screw delivers critical performance advantages in demanding applications where corrosion resistance and mechanical reliability are paramount. The combination of Class 3A thread fit and UNC coarse threading ensures secure fastening in vibration-prone environments, while the passivated finish provides an additional protective layer against chemical degradation. Engineers specify these fully threaded screws for equipment assembly, marine components, and chemical processing systems where the 70,000 PSI tensile strength maintains joint integrity under dynamic loads. The rounded button head profile with 5/64" hex drive facilitates installation in confined spaces while maintaining a low-profile appearance, making these industrial screws ideal for both structural and aesthetic applications across multiple sectors.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNC coarse thread spacing. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Thread specifications: 6-32 UNC with right-hand direction, 1-1/2" length, fully threaded. Material certification includes 316 stainless steel with Rockwell B55 hardness and 70,000 PSI tensile strength.