S-91858A192 8-32 x 3/8" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for reliable performance under load
• Optimized thread engagement through UNC coarse threading and Class 2A fit ensuring secure fastening and vibration resistance
• Complete thread coverage with fully threaded design providing maximum holding power across the entire fastener length
• Precise flush mounting featuring standard 82° countersink angle for seamless installation in tapered recesses
• Industry-standard compliance meeting ASME B18.6.3 specifications for dimensional accuracy and performance reliability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated applications

Professional Applications & Engineering Value

These 8-32 UNC flat head slotted screws deliver critical performance advantages in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The combination of 316 Stainless Steel material and passivated finish provides exceptional protection against chemical exposure, saltwater conditions, and industrial atmospheres, significantly reducing maintenance frequency and replacement costs. The fully threaded coarse UNC pattern with Class 2A fit ensures rapid installation and superior vibration resistance, while the standardized 82° countersink angle guarantees flush mounting in precision-machined components. These flat head slotted screws are engineered for applications requiring reliable fastening in marine equipment, chemical processing systems, food processing machinery, and architectural fixtures where both structural integrity and environmental compliance are essential.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit tolerances ensuring dimensional precision and interchangeability. The UNC coarse thread profile (8-32 size) provides optimal engagement in various materials, while the 82° flat head profile maintains industry-standard countersink compatibility. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and restricted substance adherence. Mechanical properties include verified 70,000 psi tensile strength and Rockwell B80 hardness, delivering consistent performance across industrial applications.