S-90279A299 12-24 x 1 1/2" 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, extending service life in demanding industrial environments
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B69 hardness rating provides excellent durability and resistance to wear
- Class 2A thread fit offers optimal assembly efficiency while maintaining secure fastening
- Full threading design enables maximum grip length and uniform stress distribution
- Phillips No. 3 drive system delivers efficient installation with standard tools
- Comprehensive regulatory compliance including ASME B18.6.3, RoHS 3, and REACH for global acceptance
Professional Applications & Engineering Value
These 12-24 UNC zinc-plated steel rounded head screws are engineered to address critical industrial fastening challenges where corrosion resistance and structural integrity are paramount. The coarse thread configuration combined with Class 2A thread fit ensures rapid assembly in production environments while maintaining vibration resistance. The zinc-plated surface treatment creates a protective barrier against moisture and chemical exposure, making these Phillips drive screws ideal for outdoor equipment, machinery assemblies, and structural applications. The fully threaded design provides consistent clamping force distribution across the entire 1½" length, preventing joint failure in high-stress applications. These industrial-grade fasteners deliver reliable performance in manufacturing, construction, and heavy equipment maintenance where 60,000 psi tensile strength and regulatory compliance are essential requirements.
Specification Summary & Compliance
These rounded head screws feature precision 12-24 UNC coarse threads with Class 2A thread fit per ASME standards, ensuring consistent dimensional accuracy and interchangeability. Manufacturing complies with ASME B18.6.3 specifications for dimensional requirements and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, making them suitable for global industrial applications requiring environmental responsibility.
