S-90279A133 5-40 x 1" ASME B18.6.3 Steel Round Head Phillips Screws
Steel Round 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
- Excellent holding power with fully threaded design ensuring maximum engagement and vibration resistance
- High tensile strength rating of 60,000 psi provides reliable performance under significant mechanical stress
- Optimized drive efficiency with No. 2 Phillips head for secure tool engagement and reduced cam-out risk
- Quick installation with 5-40 UNC coarse threading that facilitates faster assembly in various materials
- Consistent thread quality with Class 2A fit ensuring reliable engagement and interchangeability
- Rounded head profile offers reduced surface protrusion and improved aesthetic integration
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws deliver exceptional value in industrial assembly applications where corrosion resistance and mechanical reliability are paramount. The combination of 5-40 UNC coarse threading and fully threaded design ensures rapid installation and maximum thread engagement across various substrates, from metal fabrications to engineered plastics. The No. 2 Phillips drive provides secure tool engagement while the 60,000 psi tensile strength and Rockwell B69 hardness guarantee structural integrity in demanding environments including machinery, electrical enclosures, and construction applications. The rounded head design minimizes snagging hazards while maintaining a professional finish.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading specifications. These screws comply with ASME B18.6.3 manufacturing standards and meet critical regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental responsibility and workplace safety. The right-hand thread direction and standardized dimensions guarantee compatibility across industrial applications.
