S-90272A856 5/16"-18 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
- Superior corrosion resistance with zinc plating for extended service life in demanding environments
- High tensile strength of 60,000 psi ensures reliable fastening under substantial loads
- Rockwell B70 hardness provides excellent resistance to wear and deformation
- Full UNC coarse threading enables faster installation and superior holding power
- Class 2A thread fit guarantees consistent, precision engagement with mating components
- No. 4 Phillips drive offers secure tool engagement and efficient installation
- Pan head design combines low-profile appearance with effective clamping surface
Professional Applications & Engineering Value
This zinc-plated steel pan head screw delivers exceptional performance in demanding industrial applications where corrosion resistance and mechanical strength are critical. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable fastening in heavy machinery, construction equipment, and automotive assemblies. The UNC coarse thread design provides superior resistance to vibration loosening while enabling quick installation in production environments. The fully threaded configuration offers maximum grip length and uniform stress distribution, making it ideal for joining materials of varying thicknesses. The zinc plating surface treatment protects against rust and corrosion in outdoor or high-moisture applications, extending service life and reducing maintenance requirements.
Specification Summary & Compliance
This 5/16"-18 x 1-1/2" pan head screw features precision Class 2A thread fit with UNC coarse threading (18 TPI) and meets ASME B18.6.3 manufacturing specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. Manufactured from high-strength steel with zinc plating, this fastener maintains dimensional accuracy and performance consistency for reliable assembly operations.
