S-91771A632 3/8"-16 x 2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior load-bearing capacity with 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance under stress
• Optimized flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
• Enhanced driving efficiency through No. 4 Phillips drive design, reducing tool slippage during installation
• Consistent thread engagement with fully threaded UNC coarse pattern and Class 2A fit for vibration-resistant connections
• Regulatory peace of mind with full compliance to ASME B18.6.3, RoHS 3, and REACH standards
• Versatile industrial compatibility with 2" length and right-hand threading for broad application across machinery and equipment

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 3/8"-16 UNC flat head 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 oxidation, significantly extending service life in manufacturing, marine, and outdoor applications. The fully threaded coarse UNC pattern ensures maximum thread contact in softer materials or when vibration damping is essential, while the Class 2A thread fit maintains precise tolerances for consistent assembly. Combined with the 82° countersink angle and flat head profile, these screws enable flush surface mounting in machinery frames, electrical enclosures, and structural assemblies where protrusions must be avoided. The Phillips drive system offers reliable torque transfer during high-volume installations, making these fasteners ideal for production lines requiring both speed and reliability.

Specification Summary & Compliance

This flat head screw maintains precise Class 2A thread fit tolerances with 3/8"-16 UNC coarse threading and full compliance to ASME B18.6.3 manufacturing specifications. Regulatory adherence includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across global industrial markets. Dimensional accuracy is verified for 2" length, 0.717" head diameter, and standardized 82° countersink angle per industrial requirements.