S-91099A220 6-32 x 1/2" 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, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
- Precision thread engagement through UNC coarse spacing and Class 2A fit ensures secure fastening and vibration resistance
- Optimized flush mounting with 82° countersink angle and undercut flat head design for seamless surface integration
- Enhanced installation efficiency with No. 2 Phillips drive providing positive torque transmission and reduced cam-out
- Full-threaded design maximizes grip length and distributes stress evenly across the entire fastener
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications
Professional Applications & Engineering Value
These 6-32 flat head screws deliver critical performance advantages in demanding industrial applications where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction provides excellent protection against oxidation and chemical exposure, making them ideal for marine equipment, food processing machinery, and outdoor installations. The combination of UNC coarse threading with Class 2A fit ensures rapid installation and secure fastening in various materials, while the flat head undercut profile with 82° countersink angle allows for flush mounting that prevents snagging and maintains aerodynamic surfaces. The fully threaded design maximizes pull-out resistance, distributing clamping forces evenly to prevent joint failure under vibration or dynamic loads.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse thread spacing (6-32 size). Complies with ASME B18.6.3 mechanical and dimensional specifications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features include: 1/2" length, right-hand thread direction, No. 2 Phillips drive size, and 82° countersink angle for standardized installation.
