S-91772A682 3/8"-16 x 1 3/4" 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 for extended service life in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable heavy-duty fastening
• Optimized drive engagement through Phillips No. 4 drive design preventing cam-out and ensuring secure installation
• Maximum thread engagement with fully threaded design providing consistent clamping force along the entire 1 3/4" length
• Precise thread compatibility with Class 2A UNC coarse threads ensuring smooth assembly and interchangeability
• Enhanced accessibility through rounded pan head profile allowing easier installation in confined spaces
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global applications

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 3/8"-16 UNC fully threaded pan head screws deliver exceptional performance where corrosion resistance and mechanical reliability are critical. The passivated 18-8 stainless steel construction provides superior protection against oxidation and chemical exposure, making them ideal for marine equipment, food processing machinery, and outdoor industrial applications. The coarse UNC thread design ensures rapid assembly and superior vibration resistance, while the Phillips drive offers familiar, efficient installation. With fully threaded coverage along the entire shank, these screws maintain consistent clamping force across joined materials, preventing loosening under dynamic loads. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures these fasteners withstand extreme mechanical stresses without deformation or failure.

Specification Summary & Compliance

These rounded head screws feature precise Class 2A thread fit according to UNC standards, ensuring dimensional accuracy and proper mating with corresponding nuts and threaded components. Manufacturing complies with ASME B18.6.3 specifications for mechanical fasteners, guaranteeing consistent quality and performance. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances. The right-hand thread direction and coarse thread spacing provide optimal engagement characteristics for industrial assembly requirements.