S-91773A203 8-32 x 1 1/2" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional tensile strength of 100,000 psi ensures reliable, long-lasting fastening under high-stress conditions
• Optimized drive engagement with No. 2 Phillips drive for efficient installation and reduced cam-out risk
• Precise thread fit with UNC coarse threading and Class 2A tolerance for quick assembly and vibration resistance
• Full threading design provides maximum grip length and consistent holding power across the entire fastener
• Rounded head profile offers a smooth, finished appearance while minimizing snagging hazards
• Regulatory compliance with ASME B18.6.3, RoHS 3, and REACH standards for quality assurance and environmental safety

Professional Applications & Engineering Value

These rounded head Phillips screws deliver critical performance advantages in demanding industrial applications where corrosion resistance and mechanical strength are paramount. The combination of 18-8 stainless steel material and passivated finish creates a robust barrier against chemical exposure and atmospheric corrosion, significantly extending service life in manufacturing equipment, marine components, and food processing machinery. The UNC coarse threading with Class 2A fit ensures rapid installation and reliable performance in vibration-prone environments, while the fully threaded design provides uniform stress distribution across the entire engagement length. These industrial screws solve common fastening challenges by maintaining 100,000 psi tensile strength and Rockwell B100 hardness even after repeated disassembly cycles, making them ideal for maintenance-intensive applications requiring dependable, reusable fastening solutions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse threading (8-32 size). These screws maintain compliance with ASME B18.6.3 manufacturing specifications and meet environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements. The 1-1/2" length and fully threaded configuration ensure consistent performance across industrial applications requiring reliable mechanical fastening.