S-91772A166 1-64 x 1/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Optimized drive engagement featuring Phillips No. 0 drive for secure installation and reduced cam-out risk
• Precise thread compatibility with Class 2A UNC coarse threads ensuring consistent fit and vibration resistance
• Full-threaded design providing maximum grip length and uniform stress distribution across applications
• Regulatory compliance meeting ASME B18.6.3 specifications and environmental standards (RoHS 3/REACH)
• Pan head profile offering low-profile installation with enhanced bearing surface for secure fastening

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 1-64 UNC machine screws deliver critical performance advantages in machinery assembly, electronic enclosures, and precision equipment. The passivated 18-8 stainless steel construction provides exceptional resistance to oxidation and chemical exposure, significantly extending service life in corrosive environments. The coarse thread spacing and Class 2A thread fit ensure rapid installation while maintaining vibration-resistant connections, reducing maintenance frequency in high-cycle operations. The combination of fully threaded design and pan head profile creates uniform clamping force distribution, preventing joint failure in dynamic loading conditions. These Phillips drive screws are particularly valuable in applications requiring repeated disassembly, where consistent drive engagement and material durability are paramount for operational efficiency.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for precise engagement. Features 1-64 UNC coarse threads with complete threading along the 1/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial sectors. Material certification confirms 18-8 stainless steel composition with passivated surface treatment for enhanced corrosion protection.