S-97975A128 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 410 stainless steel construction for long-lasting performance in demanding environments
• Efficient plastic fastening through DST thread forming technology that creates strong, permanent threads without chips
• Optimized installation process with pre-determined No. 29 drill bit size (0.136") for precise, secure fittings
• Enhanced driving efficiency featuring Phillips No. 2 drive for reliable torque transfer and reduced cam-out risk
• Maximum thread engagement with fully threaded design and 18 TPI precision for superior holding power in plastic materials
• Streamlined assembly using blunt tip design that guides smoothly into pre-drilled holes without damaging materials
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

These No. 8 x 1-1/2" 410 stainless steel DST thread forming screws deliver exceptional engineering value for plastic fastening applications across industrial sectors. The thread forming technology eliminates chip formation during installation, preventing contamination in sensitive assemblies while creating stronger, more reliable threads than traditional cutting screws. The fully threaded blunt tip design ensures maximum pull-out resistance in thermoplastic and composite materials, making them ideal for automotive components, electrical enclosures, and consumer electronics where vibration resistance is critical. The Phillips drive system provides consistent torque application, while the pan head profile offers a low-profile finish with excellent bearing surface. These screws solve common plastic fastening challenges including material stress cracking, thread stripping, and corrosion-induced failure.

Specification Summary & Compliance

This thread forming screw features precision Class 2A thread tolerances with 18 TPI right-hand threading and standard pan head configuration. The fastener meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) standards for hazardous substance restrictions. Manufactured to industry standards for DST thread forming screws, the product ensures consistent performance with 1-1/2" length, 0.164" thread diameter, and compatibility with No. 29 drill bit (0.136") for proper hole preparation in plastic materials.