S-96640A027 2-56 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
- Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 psi ensures reliable fastening under substantial mechanical stress
- Rockwell B80 hardness provides excellent durability and resistance to wear during installation and use
- Full threading and Class 2A thread fit deliver consistent engagement and secure connections in coarse UNC applications
- 82° countersink angle and flat head design allow for flush mounting, reducing snagging and improving aesthetics
- Compliance with ASME B18.6.3 guarantees dimensional accuracy and interchangeability in precision assemblies
- RoHS 3 and REACH compliance ensures environmental safety and regulatory acceptance in global markets
Professional Applications & Engineering Value
These 2-56 UNC flat head Phillips screws are engineered to address common industrial fastening challenges, including vibration resistance and corrosion in demanding applications. The Black-Oxide 18-8 Stainless Steel material offers enhanced protection against oxidation and chemical exposure, making them suitable for electronics, machinery, and outdoor equipment. The coarse thread design and fully threaded body ensure quick installation and strong holding power in materials where fine threads may strip. With an 82° countersink, they provide a smooth, flush finish that minimizes protrusion risks in assembled products. Ideal for machine screws and precision assemblies, these screws deliver reliable performance while meeting strict ASME B18.6.3 standards for dimensional consistency.
Specification Summary & Compliance
This product adheres to precise dimensional tolerances, including Class 2A thread fit for consistent assembly and UNC coarse threading (2-56 size) per standard specifications. Manufacturing complies with ASME B18.6.3 for reliability and interchangeability. Environmental and safety standards are met through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring no restricted substances are used. Additional features include a 1/2" length, flat head with standard profile, and Phillips No. 1 drive for efficient installation.
