S-90087A883 12-24 x 1 1/4" 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
- Self-tapping efficiency – Cuts precise threads in aluminum, brass, cast iron, and sheet metal without pre-threading, reducing installation time and labor costs.
- Corrosion-resistant zinc plating – Provides a durable protective layer for extended service life in industrial environments.
- Coarse UNC threading – Ensures quick, secure fastening and high resistance to vibration loosening in demanding applications.
- Phillips No. 3 drive compatibility – Offers widespread tool accessibility and controlled torque application during installation.
- Fully threaded blunt tip design – Maximizes grip length and prevents material splitting while maintaining consistent holding power.
- Standard pan head profile – Delivers a low-profile, rounded finish with good bearing surface for secure clamping.
- Precise No. 11 drill bit pairing – Ensures optimal hole fit for the 12-24 thread size, minimizing installation errors and ensuring reliable performance.
Professional Applications & Engineering Value
These 12-24 UNC thread cutting screws are engineered to solve common fastening challenges in metalworking and assembly. The zinc-plated steel construction resists corrosion, while the Type F thread cutting design with coarse spacing creates strong, permanent threads in ductile materials like aluminum, brass, cast iron, and sheet metal. The fully threaded blunt tip prevents material displacement and ensures full engagement, reducing the risk of strip-out under vibration. Compatible with standard No. 11 drill bits and Phillips No. 3 drivers, these screws streamline production lines, lower total cost of ownership, and provide reliable performance in HVAC, machinery, and automotive sub-assemblies.
Specification Summary & Compliance
This product features 12-24 UNC coarse threads with a Class 2A fit for consistent engagement. Manufactured to ASME B18.6.3 and SAE J933 specifications, ensuring dimensional accuracy and performance reliability. The zinc-plated steel finish meets RoHS and REACH environmental compliance standards for safe industrial use.
