S-90272A311 5/16"-18 x 7/8" 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 UNC coarse thread design delivers faster installation and superior holding power in various materials
- Class 2A thread fit offers optimal balance between easy assembly and vibration resistance
- Pan head with Phillips No. 4 drive enables efficient installation while providing a low-profile finished appearance
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality and environmental responsibility
Professional Applications & Engineering Value
Engineered for industrial applications requiring reliable fastening solutions, these 5/16"-18 UNC zinc-plated steel screws address critical engineering challenges. The combination of coarse threading and Class 2A thread fit ensures rapid installation while maintaining vibration resistance in machinery, equipment assembly, and structural applications. The zinc-plated steel construction provides essential corrosion protection for environments exposed to moisture or chemicals, while the fully threaded design maximizes grip length for superior holding power. The rounded pan head profile with Phillips drive offers both aesthetic appeal and practical installation efficiency, making these screws ideal for manufacturing, automotive, and construction applications where durability and compliance with industrial standards are paramount.
Specification Summary & Compliance
This 5/16"-18 UNC screw features precise Class 2A thread tolerances and coarse thread spacing optimized for industrial applications. Manufactured to ASME B18.6.3 specifications with Rockwell B70 hardness and 60,000 PSI tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
