S-91500A203 8-32 x 1 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction with passivated finish, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for reliable performance under heavy loads
• Precision threading with UNC coarse thread and Class 2A fit ensures secure fastening and vibration resistance in industrial equipment
• Optimized flush mounting featuring standard 82° countersink angle and flat head design for seamless surface integration
• Enhanced drive engagement with Phillips No. 2 drive style providing secure torque transmission during installation
• Full regulatory compliance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Versatile 1-1/2" length with full threading for maximum grip range across various material thicknesses

Professional Applications & Engineering Value

These 8-32 UNC flat head screws deliver critical performance advantages in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The combination of 316 stainless steel material and passivated finish provides exceptional protection against chemical degradation, making them ideal for marine equipment, chemical processing plants, and food processing machinery where moisture and corrosive agents are present. The coarse UNC threading ensures rapid installation and superior holding power in softer materials, while the flat head design with 82° countersink creates flush surfaces that prevent snagging and maintain aerodynamic profiles. These Phillips drive screws offer reliable fastening solutions for machinery assembly, electrical enclosures, and structural components where vibration resistance and long-term durability are essential engineering requirements.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit for consistent dimensional accuracy and interchangeability. Features UNC coarse threads (8-32 size) with fully threaded 1-1/2" length and standard 82° countersink angle. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Mechanical properties include 70,000 psi tensile strength and Rockwell B80 hardness for guaranteed performance in industrial applications.