S-91500A194 8-32 x 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term fastening
• Precise thread engagement with Class 2A fit and UNC coarse threads ensuring secure installation and vibration resistance
• Flush mounting capability featuring an 82° countersink angle and standard flat head profile for smooth, unobtrusive surfaces
• Wide compatibility with No. 2 Phillips drive for common tooling and fully threaded design for maximum grip length
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental directives (RoHS 3, REACH)
• Dimensional accuracy in inch system with consistent 1/2" length and 0.312" head diameter for repeatable assembly performance

Professional Applications & Engineering Value

These 8-32 UNC flat head screws in 316 Stainless Steel provide critical solutions for demanding applications where corrosion resistance and structural integrity are paramount. The passivated finish enhances surface durability against chemicals and moisture, making them ideal for marine, chemical processing, and food equipment industries. Their coarse thread design ensures rapid installation and superior holding power in various materials, while the 82° countersink angle allows for seamless flush mounting in precision assemblies. Engineered with fully threaded construction and Phillips drive, they offer consistent clamping force and compatibility with standard industrial tools, reducing installation time and improving operational efficiency in automated or manual production lines.

Specification Summary & Compliance

Manufactured to exact inch system dimensions with Class 2A thread fit per UNC standards, ensuring precise tolerance control. Complies with ASME B18.6.3 mechanical and dimensional specifications for consistent quality. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance, confirming absence of restricted substances. Threading is right-hand direction with coarse spacing, and all physical properties including hardness (Rockwell B80) and tensile strength (70,000 psi) are verified to industrial fastening requirements.