S-91771A198 8-32 x 7/8" 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 long-term reliability in harsh environments
- High tensile strength of 80,000 psi ensures secure fastening and resistance to mechanical stress in demanding applications
- Precise Class 2A thread fit guarantees smooth installation and consistent engagement with mating components
- Optimized Phillips No. 2 drive provides efficient torque transfer and reduces cam-out during assembly operations
- 82° countersink angle design enables flush mounting and clean aesthetic finishes in precision assemblies
- Full threading along 7/8" length offers maximum grip range and versatile adjustment capabilities
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures regulatory adherence for global industrial use
Professional Applications & Engineering Value
These 8-32 UNC flat head screws deliver exceptional engineering value through their passivated 18-8 stainless steel composition, providing critical corrosion resistance that prevents degradation in moisture-prone industrial environments. The coarse UNC threading combined with Class 2A thread fit ensures rapid installation and reliable performance in vibration-intensive applications, from machinery assembly to electronic enclosures. The 82° countersink angle and flat head profile create seamless surface finishes while the Phillips No. 2 drive facilitates efficient high-volume assembly operations. With 80,000 psi tensile strength and Rockwell B80 hardness, these fully threaded screws maintain structural integrity under substantial loads, making them ideal for automotive, marine, and industrial equipment where durability and regulatory compliance are paramount.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading specifications. These flat head screws conform to ASME B18.6.3 mechanical and dimensional requirements, ensuring interchangeability and reliability. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, confirming adherence to hazardous substance restrictions for global industrial distribution and use.
