S-90272A400 1/4"-20 x 3 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
- Exceptional corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
- Superior load-bearing capacity with 60,000 PSI tensile strength to withstand high-stress applications
- Reliable thread engagement through UNC coarse threading and Class 2A fit for quick assembly and vibration resistance
- Optimized drive performance with Phillips No. 3 drive style ensuring secure torque transfer and reduced cam-out risk
- Enhanced durability with Rockwell B70 hardness maintaining structural integrity under repeated use
- Full-length threading providing maximum grip along the entire 3-1/4" shaft for superior fastening security
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
Professional Applications & Engineering Value
This zinc-plated steel pan head screw delivers critical performance advantages for industrial assembly applications where corrosion resistance and high tensile strength are paramount. The combination of UNC coarse threading and Class 2A thread fit ensures rapid installation in metal framing, machinery guards, and equipment enclosures while maintaining vibration resistance. The Phillips No. 3 drive provides reliable torque transmission for production line efficiency, while the fully threaded design offers maximum holding power across the entire fastener length. Engineered to withstand demanding conditions in manufacturing, construction, and heavy equipment applications, this industrial screw solves common challenges of fastener failure, corrosion degradation, and assembly inefficiency.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse thread pattern (1/4"-20). Fully compliant with ASME B18.6.3 mechanical specifications, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) chemical regulations. The zinc-plated steel construction meets industrial requirements for corrosion protection while maintaining the specified 60,000 PSI tensile strength and Rockwell B70 hardness ratings.
