S-90385A353 Length 2" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for extended service life in various environments.
• Superior holding power in plastic materials due to thread forming (DST) design that creates strong, reliable threads without pre-tapping.
• Efficient installation with Phillips No. 2 drive, reducing cam-out and allowing for high-torque application.
• Broad surface contact from the pan head design for secure fastening and reduced risk of pull-through.
• Full-length threading ensures maximum grip along the entire 2" length for consistent, vibration-resistant connections.
• Precise fit and compatibility with standard No. 27 drill bits (0.144" diameter), simplifying preparation and installation in plastic substrates.
• Reliable performance assurance by meeting ASME B18.6.3 specifications, guaranteeing dimensional accuracy and industrial-grade quality.

Professional Applications & Engineering Value

These zinc-plated steel tapping screws are specifically engineered for plastic fastening applications, where traditional screws may strip or fail. The thread forming (DST) technology displaces material to create strong, permanent threads without generating chips, preventing contamination and ensuring a tight fit in plastics prone to cracking. The Phillips drive and pan head design facilitate quick, secure installation in automated or manual assembly lines, reducing labor time and improving throughput. Ideal for industrial and construction settings, these screws provide durable, vibration-resistant fastening for enclosures, components, and structural elements in plastic, enhancing product longevity and reliability under demanding conditions.

Specification Summary & Compliance

This No. 10-16 x 2" tapping screw features a thread diameter of 0.19" with 16 threads per inch in a right-hand direction and is fully threaded for consistent performance. Manufactured to ASME B18.6.3 standards, it ensures precise dimensional tolerances and reliability. The screw is compatible with a No. 27 drill bit (0.144" diameter) for optimal installation in plastic materials, and the zinc-plated finish provides basic corrosion protection, supporting use in various industrial environments while adhering to common quality and safety guidelines.