S-90627A126 Length 3/4" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior thread forming in plastic with DST thread forming design that creates strong, permanent threads without chips
• Enhanced corrosion resistance through black zinc-plated steel construction for durable performance in various environments
• Optimized drive efficiency with No. 2 Phillips head providing reliable torque transmission and reduced cam-out risk
• Full-length threading ensures maximum engagement and holding power throughout the entire fastener length
• Precision dimensional control with 0.164" thread diameter and 18 TPI for consistent performance in plastic assemblies
• Streamlined installation process using standard No. 30 drill bit (0.1285") for proper hole preparation and optimal thread formation
• Industry-standard compliance meeting ASME B18.6.3 specifications for reliable quality and interchangeability

Professional Applications & Engineering Value

These No. 8 x 3/4" Phillips Pan Head tapping screws are specifically engineered for plastic assembly applications where reliable fastening is critical. The DST thread forming technology eliminates the need for threaded inserts by cold-forming strong, load-bearing threads directly into plastic materials. This creates vibration-resistant connections that won't loosen under stress. The black zinc-plated steel construction provides essential corrosion protection while maintaining the mechanical strength required for industrial environments. The rounded pan head profile offers a low-profile finish that sits flush against surfaces, while the No. 2 Phillips drive ensures compatibility with standard assembly tools. These thread forming screws for plastic deliver exceptional pull-out resistance and strip torque ratios, making them ideal for electronics enclosures, automotive components, and consumer products where plastic-to-plastic or plastic-to-metal connections require durable, long-lasting fastening solutions.

Specification Summary & Compliance

These tapping screws feature precision 0.164" thread diameter with 18 threads per inch and fully threaded design for maximum engagement. The fasteners comply with ASME B18.6.3 dimensional standards, ensuring consistent quality and interchangeability. Manufactured from steel with black zinc plating for corrosion resistance, these screws are designed for use with No. 30 drill bit (0.1285") to achieve optimal thread formation in plastic materials. The 3/4" length and right-hand threading provide standardized installation across various plastic assembly applications.