S-91858A197 8-32 x 3/4" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh chemical and marine environments
• Superior mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for reliable performance under heavy loads
• Precision thread engagement with Class 2A thread fit and 8-32 UNC coarse threads ensuring secure fastening and vibration resistance
• Optimal flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
• Full-threaded design providing maximum grip length and uniform stress distribution across the entire 3/4" length
• Industry compliance assurance meeting ASME B18.6.3 specifications for dimensional accuracy and manufacturing consistency
• Environmental regulation compliance with RoHS 3 and REACH compliance for safe use in regulated industrial applications

Professional Applications & Engineering Value

These 316 stainless steel flat head screws deliver critical performance advantages in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The combination of passivated finish and 316 stainless steel material provides exceptional protection against chemical exposure, saltwater corrosion, and high-temperature oxidation, making them ideal for marine equipment, chemical processing plants, and food processing machinery. The 8-32 UNC coarse thread configuration ensures rapid installation and superior holding power in various materials, while the flat head design with 82° countersink creates flush surfaces that prevent snagging and maintain aerodynamic profiles. Engineered to withstand vibration and mechanical stress with their 70,000 psi tensile strength, these fully threaded screws offer consistent clamping force across the entire engagement length, solving common fastening failures in high-vibration applications.

Specification Summary & Compliance

This 8-32 UNC flat head screw features precise Class 2A thread fit tolerances ensuring proper engagement and interchangeability. Manufacturing complies with ASME B18.6.3 standards for dimensional accuracy, including the specified 0.312" head diameter, 0.1" head height, and 82° countersink angle. The product meets environmental compliance requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances. Thread specifications adhere to UNC coarse thread standards with right-hand threading direction and complete threading along the 3/4" length.