S-91771A204 8-32 x 1 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for heavy-duty applications
• Precise thread engagement with Class 2A fit and coarse UNC threading for secure fastening and reduced cross-threading risk
• Optimal flush mounting featuring standard 82° countersink angle and flat head design for smooth surface finishes
• Efficient installation with No. 2 Phillips drive providing reliable torque transfer and reduced cam-out
• Full-threaded coverage along the 1 3/4" length for maximum grip strength and load distribution
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial use

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 8-32 UNC flat head Phillips screws deliver critical performance advantages where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, food processing machinery, and outdoor structural applications. The combination of 80,000 psi tensile strength and fully threaded design ensures reliable fastening in vibration-prone assemblies, while the 82° countersink angle creates seamless flush mounting in precision metalwork and electronic enclosures. These industrial screws solve common engineering challenges including material degradation, installation efficiency, and long-term maintenance reduction across manufacturing, aerospace, and automotive sectors.

Specification Summary & Compliance

This flat head Phillips screw maintains precise Class 2A thread fit tolerances with UNC coarse thread spacing and right-hand threading. Manufacturing conforms to ASME B18.6.3 specifications for dimensional accuracy and performance standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries worldwide.