S-90272A303 5-40 x 1" 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 significant mechanical stress
- Class 2A thread fit provides consistent, reliable engagement while maintaining easy assembly
- Phillips No. 2 drive design offers efficient installation with standard tools, reducing assembly time
- Fully threaded shank delivers maximum grip length and uniform load distribution
- Standard pan head profile combines low-profile appearance with excellent bearing surface
- Rockwell B70 hardness maintains thread integrity and prevents stripping during installation
Professional Applications & Engineering Value
These 5-40 UNC zinc-plated steel rounded head screws deliver exceptional performance in industrial assembly applications where corrosion resistance and high tensile strength are critical. The coarse thread design provides superior holding power in various materials, while the standard pan head with Phillips No. 2 drive ensures quick, secure installation with common tools. Engineered for machinery, equipment manufacturing, and electronic enclosures, these fully threaded screws maintain consistent clamping force and vibration resistance. The combination of zinc-plated steel construction and precise UNC thread form addresses common challenges of environmental exposure and mechanical stress in industrial settings.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance for reliable engagement. These screws conform to ASME B18.6.3 specifications for dimensional accuracy and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial applications. The UNC coarse thread pattern and right-hand thread direction follow industry-standard specifications for compatibility and interchangeability.
