S-91715A154 12-24 x 3/4" 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 plating, extending service life in demanding industrial environments
- Effortless installation through Type F thread cutting design that forms mating threads without pre-tapping
- Broad material compatibility for reliable performance in aluminum, brass, cast iron, and sheet metal applications
- Optimized drive engagement with Phillips No. 3 drive for secure torque transmission and reduced cam-out risk
- Full-length threading ensures maximum grip strength and uniform load distribution along the entire fastener length
- Precision dimensional control with UNC coarse threads providing rapid assembly and vibration resistance
- Regulatory compliance meeting both ASME B18.6.3 engineering standards and RoHS 3 environmental directives
Professional Applications & Engineering Value
These 12-24 UNC coarse thread tapping screws deliver exceptional value in metal fabrication and assembly operations. The black zinc-plated steel construction provides enhanced corrosion protection while maintaining high tensile strength. The Type F thread cutting design eliminates the need for separate tapping operations, significantly reducing installation time and labor costs in aluminum, brass, cast iron, and sheet metal applications. The Phillips No. 3 drive ensures reliable torque transfer with standard driving tools, while the pan head design offers a low-profile finish suitable for various industrial assemblies. These screws are engineered to prevent stripping and maintain thread integrity even in high-vibration environments, making them ideal for automotive, machinery, and structural metalwork where durable fastening solutions are critical.
Specification Summary & Compliance
This 3/4" tapping screw features precision 12-24 UNC coarse threads with Class 2A tolerance for consistent fit and performance. Manufactured to ASME B18.6.3 specifications (SAE J933) with Type F thread cutting profile. Compatible with No. 8 drill bit (0.199" diameter) for proper hole preparation. The product is RoHS 3 (2015/863/EU) compliant and meets industry standards for industrial fastener applications requiring reliable performance in metal substrates.
