S-90385A368 Length 1 1/2" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior plastic fastening performance with thread forming design that creates strong, permanent threads without pre-tapping
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in demanding environments
• Optimized drive efficiency with Phillips No. 3 drive that provides reliable torque transmission and reduces cam-out
• Maximum thread engagement through fully threaded design ensuring superior holding power across the entire fastener length
• Precision installation compatibility with No. 7 drill bits (0.201") for accurate hole sizing and secure fastening in plastic materials
• Excellent head retention from pan head design that distributes clamping force evenly and resists pull-through
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and reliability

Professional Applications & Engineering Value

These DST tapping screws are specifically engineered for plastic assembly applications where traditional fastening methods often fail. The thread forming design eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating strong, vibration-resistant connections. The zinc-plated steel construction provides essential corrosion protection in industrial environments, while the fully threaded configuration ensures maximum pull-out resistance in brittle plastic materials. The Phillips drive system offers reliable installation with standard tools, making these screws ideal for high-volume manufacturing operations in automotive trim, electrical enclosures, and consumer product assemblies where durable plastic fastening is critical.

Specification Summary & Compliance

These precision No. 14 x 1-1/2" DST tapping screws feature a 0.242" thread diameter with 15 threads per inch and are manufactured to exacting ASME B18.6.3 standards. The screws maintain consistent dimensional accuracy with Class 2A thread tolerances for reliable performance. The blunt tip design and thread forming tapping method ensure proper material displacement in plastic substrates. Compliance with industry specifications guarantees consistent quality and performance across production batches, providing engineers with reliable fastening solutions for plastic applications that meet professional installation requirements.