S-90272A304 5-40 x 1 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 plating for extended service life in demanding industrial environments
- High-strength performance with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing applications
- Optimized fastening efficiency through fully threaded UNC coarse thread design for quicker installation and stronger hold
- Secure drive engagement with Phillips No. 2 drive style preventing cam-out and ensuring consistent torque application
- Precision thread fit with Class 2A tolerance ensuring smooth assembly and reliable mechanical connections
- Versatile rounded pan head design providing a low-profile finish while accommodating standard driving tools
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
These 5-40 UNC zinc-plated steel rounded head screws deliver exceptional engineering value across industrial applications where corrosion resistance and high tensile strength are critical. The coarse thread design ensures rapid installation in metal assemblies, electrical enclosures, and machinery components, while the fully threaded configuration provides maximum grip length for vibration-resistant connections. The Phillips No. 2 drive offers familiar, reliable tool engagement for maintenance teams, and the zinc-plated steel construction withstands harsh environments without compromising mechanical integrity. These industrial screws solve common fastening challenges by combining durability with precise Class 2A thread fit, making them ideal for production lines requiring consistent, repeatable assembly performance.
Specification Summary & Compliance
Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance for precision assembly. The 5-40 UNC coarse thread profile ensures reliable engagement in various materials, while the 1 1/4" length provides optimal fastening depth. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety standards are met for global industrial distribution and use.
