S-91771A944 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 tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 2A thread fit provides consistent engagement and reduces cross-threading risks during assembly
- Optimized Phillips drive design with No. 2 size enables efficient installation and reduces cam-out incidents
- 100° countersink angle allows for flush mounting in standard applications, improving aesthetic and safety
- Full threading along 1/2" length maximizes grip strength and distributes stress evenly across fastened materials
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures material safety and regulatory acceptance
Professional Applications & Engineering Value
Engineered for demanding environments, these 6-32 UNC flat head Phillips screws deliver critical advantages in industrial fastening applications where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction prevents oxidation in humid or chemical-exposed settings, while the 80,000 psi tensile strength and Rockwell B80 hardness maintain joint integrity under dynamic loads. The fully threaded coarse spacing design ensures rapid installation and secure holding power in metals, plastics, and composite assemblies. These flat head screws are particularly valuable in electronics enclosures, machinery panels, and automotive components where flush surface mounting and reliable fastening are essential for both performance and safety compliance.
Specification Summary & Compliance
Manufactured to precise inch system dimensions with Class 2A thread fit tolerance for consistent performance. Features UNC coarse thread (6-32) with right-hand direction and standard flat head profile. Complies with ASME B18.6.3 mechanical standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.
