S-91771A196 8-32 x 5/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction for extended service life in harsh environments
- High tensile strength of 80,000 PSI ensures reliable fastening under substantial mechanical loads
- Rockwell B80 hardness provides excellent wear resistance and durability for repeated use
- Class 2A thread fit offers consistent, reliable engagement with standard UNC coarse threaded components
- 82° countersink angle enables flush mounting for clean, professional finishes in visible applications
- Phillips No. 2 drive allows for efficient installation with common tools while minimizing cam-out
- Full threading along the entire 5/8" length provides maximum grip and holding power
Professional Applications & Engineering Value
These 8-32 UNC flat head screws deliver exceptional engineering value across industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction prevents oxidation in humid or chemical environments, while the 80,000 PSI tensile strength ensures secure fastening in machinery, electrical enclosures, and structural assemblies. The combination of UNC coarse threading and Class 2A fit provides reliable engagement in various materials, reducing installation time and preventing cross-threading. The 82° countersink design creates seamless surfaces in precision equipment, automotive components, and manufacturing fixtures, eliminating protrusions that could interfere with moving parts or compromise safety.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance for consistent performance in inch-system applications. These flat head screws comply with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Thread specifications include 8-32 UNC coarse thread with right-hand orientation and standard flat head profile for universal compatibility.
