S-90086A681 10-32 x 1 1/2" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior thread cutting performance in aluminum, brass, cast iron, and sheet metal without pre-tapping, reducing installation time and labor costs.
• Enhanced corrosion resistance with black-oxide steel finish, ensuring long-term reliability in demanding industrial environments.
• Secure and efficient driving with Phillips No. 2 drive and flat head design, providing flush mounting and preventing cam-out during assembly.
• Full threading along the 1-1/2" length for maximum grip and uniform load distribution, minimizing loosening under vibration.
• Precision UNF fine threads (10-32) offering excellent engagement and holding power in thin materials and high-stress applications.
• Compliance with ASME B18.6.3 standards and RoHS 3, guaranteeing consistent quality, safety, and environmental responsibility.
• Optimized for use with No. 16 drill bits and 82° countersink angles, ensuring proper fit and streamlined workflow in metalworking projects.

Professional Applications & Engineering Value

These 10-32 UNF thread cutting screws are engineered to address common challenges in metal assembly, such as stripping, corrosion, and inconsistent fastening. The black-oxide steel construction provides a durable barrier against moisture and wear, while the thread cutting design (Type F) creates precise mating threads in materials like aluminum, brass, and cast iron without requiring pre-tapped holes. This eliminates the need for additional tools and reduces assembly errors, making them ideal for sheet metal fabrication, machinery enclosures, and automotive components. The Phillips flat head ensures a smooth, flush finish, enhancing aesthetics and safety in visible applications. By integrating high-strength materials and standardized UNF fine threads, these screws deliver reliable performance in vibration-prone environments, extending equipment lifespan and minimizing maintenance downtime.

Specification Summary & Compliance

This product adheres to Class 2A thread tolerances under the UNF (Unified National Fine) standard, ensuring precise fit and interchangeability. Manufacturing and quality are governed by ASME B18.6.3 specifications, with full compliance to RoHS 3 (2015/863/EU) for restricted substance control. The screws feature a standard flat head profile with 82° countersink angle, fully threaded shank, and are designed for use with No. 16 drill bits (0.177" diameter) to maintain dimensional accuracy across applications.