S-90272A313 5/16"-18 x 2 1/4" 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
- Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- High tensile strength of 60,000 PSI ensures reliable fastening under substantial mechanical loads
- Rockwell B70 hardness provides excellent wear resistance and prevents thread deformation during installation
- Fully threaded design offers maximum grip length and uniform stress distribution across the entire fastener
- Class 2A thread fit enables quick assembly while maintaining secure connections with standard mating parts
- Pan head with Phillips drive combines low-profile installation with widely available tool compatibility
- UNC coarse threading facilitates faster installation and reduced cross-threading risks in industrial applications
Professional Applications & Engineering Value
Engineered for industrial machinery assembly and heavy-duty equipment manufacturing, these zinc-plated steel screws address critical fastening challenges where vibration resistance and environmental durability are paramount. The pan head design with Phillips drive provides optimal torque transmission while maintaining a low profile for space-constrained applications. The UNC coarse thread configuration ensures rapid installation in production environments while the fully threaded construction delivers consistent clamping force across the entire engagement length. This combination of 60,000 PSI tensile strength and Rockwell B70 hardness makes these fasteners ideal for structural applications requiring repeated disassembly and reassembly without performance degradation.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance. Complies with ASME B18.6.3 specifications for mechanical fasteners and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features 5/16"-18 UNC coarse threads with right-hand orientation and standard pan head profile measuring 0.615" diameter × 0.218" height.
