S-91771A622 3/8"-16 x 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Superior mechanical strength with 80,000 PSI tensile strength and Rockwell B80 hardness for demanding industrial applications
• Precision thread engagement with Class 2A UNC coarse threads providing secure fastening and vibration resistance
• Optimized flush mounting featuring standard 82° countersink angle for seamless surface integration
• Enhanced drive stability through Phillips No. 4 drive design, reducing cam-out during installation
• Full-threaded coverage along the 3/4" length ensures 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 3/8"-16 UNC flat head screws deliver critical performance advantages through their passivated 18-8 stainless steel composition and precision manufacturing. The combination of 80,000 PSI tensile strength and Rockwell B80 hardness ensures reliable performance in high-stress applications including machinery assembly, structural frameworks, and equipment manufacturing. The fully threaded design with Class 2A UNC coarse threads provides superior holding power while the 82° countersink angle enables flush mounting in precision applications. These flat head Phillips screws solve common industrial challenges including corrosion-induced failure, vibration loosening, and installation efficiency, making them ideal for manufacturing, construction, and heavy equipment sectors where durability and precision are paramount.

Specification Summary & Compliance

Manufactured to exacting dimensional tolerances with Class 2A thread fit and UNC coarse threading (3/8"-16), these screws maintain precision alignment with industry standards. Compliance includes ASME B18.6.3 specifications for dimensional accuracy and mechanical properties, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The fully threaded configuration and standardized 82° countersink angle ensure consistent performance across industrial applications while meeting international quality and safety requirements.