S-90385A351 Length 1 1/4" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior plastic fastening performance with DST thread forming design that creates strong, permanent threads without chips
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in industrial environments
• Optimized drive efficiency with Phillips No. 2 drive that prevents cam-out and ensures secure installation
• Maximum holding power through fully threaded design with 16 TPI precision for superior grip in plastic materials
• Simplified installation process with pre-specified No. 27 drill bit size for proper hole preparation
• Reliable industrial compliance meeting ASME B18.6.3 standards for consistent quality and performance
• Versatile pan head design providing a balance of low profile and sufficient bearing surface for various applications

Professional Applications & Engineering Value

These zinc-plated steel DST tapping screws are specifically engineered for plastic fastening applications where traditional fasteners fail. The thread forming design eliminates the risk of material cracking or stress concentration common in brittle plastics by displacing material rather than removing it. This creates stronger, more reliable threads that maintain integrity under vibration and thermal cycling. The fully threaded configuration with 16 TPI precision ensures maximum engagement along the entire fastener length, providing superior pull-out resistance in plastic assemblies. The Phillips No. 2 drive system offers efficient installation while the zinc plating provides essential corrosion protection for industrial environments. These features make them ideal for plastic component assembly in automotive, electronics, and consumer goods manufacturing where reliable, vibration-resistant fastening is critical.

Specification Summary & Compliance

These No. 10 x 1-1/4" tapping screws feature inch system measurements with Class 2A thread tolerances and are manufactured to meet ASME B18.6.3 specifications for dimensional accuracy and performance standards. The DST thread forming design follows established industrial standards for self-tapping screws, ensuring consistent performance across applications. The zinc-plated steel construction complies with industry standards for corrosion resistance, while the manufacturing process adheres to quality control requirements specified in the ASME standard for reliable, repeatable performance in professional and industrial settings.