S-97349A426 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or demanding industrial environments.
• Efficient thread forming design creates strong, permanent threads in plastic materials without pre-tapping, reducing assembly time and labor costs.
• Secure Phillips drive engagement with No. 2 drive size provides reliable torque transmission and minimizes cam-out during installation.
• Optimized pan head profile offers a low-profile, rounded finish that sits flush against surfaces while distributing clamping force evenly.
• Full threading along the 1-1/2" length ensures maximum grip and holding power throughout the entire fastener engagement area.
• Precision-matched drill bit size (No. 32 / 0.116" diameter) guarantees proper hole fit for secure thread formation in plastic substrates.
• Environmental compliance assurance with RoHS 3 and REACH regulations, making them suitable for regulated industries and export markets.

Professional Applications & Engineering Value

These 18-8 stainless steel tapping screws are specifically engineered for plastic fastening applications where material integrity and joint reliability are critical. The thread forming (DST) technology displaces plastic material during installation rather than cutting it, creating zero clearance fit and eliminating chip accumulation issues common in machined threads. This design prevents stress cracking in brittle plastics while providing superior vibration resistance – a crucial advantage in automotive trim, electronic enclosures, and appliance assemblies. The combination of Phillips drive system and pan head configuration delivers both installation efficiency and a finished appearance, while the fully threaded shank maximizes pull-out strength in various plastic thicknesses. These screws solve common plastic assembly challenges including strip-out prevention, chemical compatibility, and long-term fastener retention.

Specification Summary & Compliance

These No. 6 x 1-1/2" tapping screws feature a 0.138" thread diameter with 19 TPI thread pitch and are manufactured to standard inch dimensions. The thread forming (DST) tapping method complies with industry standards for plastic fastening applications. All screws are RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental regulations for hazardous substance restrictions. The recommended No. 32 drill bit (0.116" diameter) ensures proper hole preparation for optimal thread engagement and holding power in plastic materials.