S-91781A197 8-32 x 3/4" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term fastening
• Precision coarse threading (UNC) with Class 2A fit ensures easy installation and secure holding power in various materials
• Standard 82° countersink angle allows for flush mounting, creating smooth, professional-looking surfaces
• Full threading along the 3/4" length provides maximum grip and uniform stress distribution
• Compliance with major industry standards including ASME B18.6.3, ensuring dimensional accuracy and interchangeability
• Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for safe usage

Professional Applications & Engineering Value

These 8-32 UNC flat head slotted screws in 18-8 stainless steel are engineered to address critical industrial fastening challenges. The combination of passivated finish and stainless steel material provides exceptional corrosion resistance, making them ideal for applications in chemical processing, marine environments, and food processing equipment where moisture and corrosive elements are present. The coarse UNC threading with Class 2A fit ensures quick installation and reliable performance in soft metals, plastics, and wood, while the flat head design with standard 82° countersink creates seamless, flush surfaces perfect for machinery, electronic enclosures, and automotive assemblies where protrusion must be avoided. The fully threaded 3/4" length maximizes engagement depth, providing superior pull-out resistance in demanding applications.

Specification Summary & Compliance

This 8-32 UNC flat head slotted screw features precise Class 2A thread fit per ASME B18.6.3 specifications, ensuring dimensional accuracy and proper clearance for reliable assembly. The manufacturing process adheres to ASME B18.6.3 standards for dimensional consistency and mechanical properties. Environmental compliance is confirmed through RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, meeting current regulatory requirements for hazardous substance restrictions. The right-hand thread direction and coarse thread spacing maintain industry-standard compatibility for replacement and new installations.