S-92224A271 1/4"-20 x 14" 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 black oxide steel finish for prolonged service life in demanding environments
- Superior holding power with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Optimized installation efficiency through Phillips No. 3 drive and coarse UNC threading for faster assembly
- Enhanced structural integrity with partially threaded design concentrating strength where needed most
- Precise thread engagement ensured by Class 2A thread fit for consistent, vibration-resistant connections
- Broad compatibility with standard 1/4"-20 UNC components across industrial equipment and machinery
- Regulatory confidence through full compliance with ASME B18.6.3, RoHS 3, and REACH standards
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these black oxide steel screws solve critical fastening challenges where corrosion resistance and structural reliability are paramount. The Phillips pan head design with No. 3 drive provides secure torque transmission while the coarse UNC threading ensures rapid installation in metal fabrication, machinery assembly, and structural frameworks. The partial threading configuration maximizes clamping force distribution, preventing joint loosening under dynamic loads. With 14-inch length and Class 2A thread fit, these rounded head screws deliver precise alignment in construction equipment, agricultural machinery, and industrial enclosures where vibration resistance and long-term durability are essential.
Specification Summary & Compliance
Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent dimensional accuracy. Features 1/4"-20 UNC coarse threads with right-hand direction and partial threading configuration. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures material safety and regulatory acceptance across global markets.
