S-90272A088 2-56 x 1 1/2" ASME B18.6.3 Steel Pan Head Phillips Screws
Steel Pan Head Phillips 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
- Enhanced corrosion resistance through zinc plating, extending service life in demanding industrial environments
- Superior tensile strength rated at 60,000 psi for reliable performance under high-stress applications
- Rockwell B70 hardness provides excellent durability and resistance to wear during installation and use
- Class 2A thread fit ensures smooth assembly and consistent engagement with standard UNC nuts and threaded holes
- Phillips No. 1 drive design offers secure tool engagement and reduced cam-out risk during installation
- Fully threaded configuration maximizes holding power along the entire 1½" length for superior fastening
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH standards for quality assurance and environmental safety
Professional Applications & Engineering Value
These 2-56 UNC zinc-plated steel rounded head screws deliver exceptional engineering value across multiple industrial sectors. The coarse thread design combined with Class 2A thread fit provides rapid assembly in metal fabrication, electronics enclosures, and machinery components where vibration resistance is critical. The pan head profile with Phillips drive ensures flush mounting while maintaining high torque transmission capability. The zinc-plated steel construction offers reliable corrosion protection for outdoor equipment, automotive assemblies, and electrical panels exposed to harsh environments. With full threading along the entire 1½" length, these screws maintain consistent clamping force in thick materials and structural applications requiring maximum fastening integrity.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance for UNC coarse threads. Complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Thread specifications include 2-56 UNC coarse thread with right-hand orientation, manufactured from zinc-plated steel with Rockwell B70 hardness and 60,000 psi tensile strength rating.
