S-91715A152 12-24 x 1/2" ASME B18.6.3, SAE J933 Tapping Screws
Tapping 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 black zinc-plated steel construction for extended service life in demanding industrial environments
- Excellent thread-cutting performance in aluminum, brass, cast iron, and sheet metal without requiring pre-tapped holes
- Maximum holding power through fully threaded coarse UNC spacing that provides superior pull-out resistance
- Secure installation with No. 3 Phillips drive that prevents cam-out and ensures proper torque application
- Industry-standard compliance with ASME B18.6.3 specifications for consistent quality and interchangeability
- Environmental responsibility through RoHS 3 compliance, ensuring safe use in regulated applications
- Versatile pan head design with rounded profile for balanced clamping force and professional appearance
Professional Applications & Engineering Value
These 12-24 UNC thread cutting tapping screws deliver exceptional engineering value by eliminating the need for separate tapping operations in aluminum, brass, cast iron, and sheet metal applications. The black zinc-plated steel construction provides reliable corrosion protection while the coarse thread spacing and thread cutting design create precise, secure threads in base materials without stripping or cross-threading. The fully threaded configuration ensures maximum engagement along the entire fastener length, while the No. 3 Phillips drive facilitates efficient installation in confined spaces. These industrial-grade tapping screws solve common assembly challenges by reducing installation time, minimizing component inventory, and providing consistent performance across multiple material types.
Specification Summary & Compliance
Manufactured to precise dimensional standards with UNC coarse thread profile and Class 2A thread tolerance for reliable fit. These thread cutting tapping screws comply with ASME B18.6.3 specifications (where referenced to SAE J933) for dimensional consistency and mechanical properties. The fasteners meet RoHS 3 (2015/863/EU) compliance requirements, ensuring environmental responsibility in industrial applications. The 1/2" length and No. 12 screw size provide standardized dimensions for predictable performance across various assembly requirements.
