S-98164A462 10-32 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 chemical and marine environments
• Precise thread engagement through Class 3A UNF fine threading, ensuring reliable vibration resistance and secure fastening in critical assemblies
• High mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness, providing durable performance under heavy loads
• Easy installation and removal with hex drive design, allowing efficient torque application in confined spaces
• Full regulatory compliance meeting ASME B18.3 standards, RoHS 3, and REACH, ensuring safety and environmental responsibility
• Optimized load distribution through rounded button head profile, reducing surface damage and stress concentration
• Complete thread coverage with fully threaded 1½" length, offering maximum grip and adjustment flexibility

Professional Applications & Engineering Value

This 316 stainless steel rounded head screw delivers exceptional performance in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The UNF Class 3A fine threading provides superior vibration resistance compared to coarse threads, making it ideal for precision equipment, marine hardware, and chemical processing applications. The passivated finish enhances the natural corrosion resistance of 316 stainless steel, protecting against chlorides and acidic environments. With its hex drive and button head design, installation is streamlined in tight spaces while maintaining a low-profile appearance. These industrial screws are engineered to maintain integrity in high-stress applications, from machinery assembly to offshore installations, where failure is not an option.

Specification Summary & Compliance

This fastener maintains Class 3A thread fit per UNF standards, ensuring precise dimensional accuracy and interchangeability. Manufacturing conforms to ASME B18.3 specifications for socket cap screws, guaranteeing consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for hazardous substances. With 10-32 UNF fine threading and 1½" fully threaded length, it delivers reliable fastening performance across various industrial applications.