S-91771A203 8-32 x 1 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 with Class 2A UNC coarse threads ensuring secure, vibration-resistant fastening
- Optimized flush mounting featuring standard 82° countersink angle for seamless surface integration
- Enhanced installation efficiency with Phillips No. 2 drive providing positive torque transmission
- Full-threaded design maximizing grip length and distribution of clamping force
- Regulatory compliance assurance meeting ASME B18.6.3 specifications and international environmental standards
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 8-32 UNC flat head screws deliver critical performance advantages where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, food processing machinery, and outdoor installations. The fully threaded design with Class 2A coarse threads ensures maximum thread engagement in both metallic and composite materials, while the standardized 82° countersink angle facilitates perfect flush mounting in precision assemblies. These flat head machine screws are particularly valuable in applications requiring frequent disassembly, as the Phillips No. 2 drive maintains its integrity through multiple maintenance cycles without stripping or deformation.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with Class 2A thread fit tolerance and UNC coarse threading (8-32 size). Full compliance with ASME B18.6.3 mechanical specifications, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) regulations regarding substance restrictions. The 1-1/2" length maintains precise dimensional consistency with standard flat head profile and right-hand thread orientation for universal compatibility across industrial applications.
