S-97975A127 Length 1 1/4" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 410 stainless steel construction for extended service life in demanding environments
- Efficient thread forming technology creates strong, permanent threads in plastic materials without chips or debris
- Optimized plastic fastening performance with 18 TPI thread pitch and blunt tip design to prevent material cracking
- Secure Phillips No. 2 drive provides reliable torque transmission and prevents cam-out during installation
- Full-length threading ensures maximum grip strength and uniform stress distribution along the entire fastener length
- Precision dimensional compatibility with No. 29 drill bit (0.136" diameter) for perfect fit and installation efficiency
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications
Professional Applications & Engineering Value
These 410 stainless steel tapping screws deliver exceptional engineering value for plastic fastening applications across industrial and construction sectors. The thread forming DST design eliminates the risk of plastic cracking or stress fractures common with standard fasteners, while the fully threaded blunt tip ensures smooth material displacement during installation. The 18 TPI precision threading provides superior pull-out resistance in thermoplastic and thermoset materials, making these self-tapping screws ideal for automotive components, electrical enclosures, and consumer product assemblies. The combination of Phillips drive compatibility and standardized drill bit sizing streamlines production processes, reducing installation time and improving manufacturing efficiency.
Specification Summary & Compliance
These No. 8 x 1-1/4" tapping screws feature a 0.164" thread diameter with 18 TPI thread forming design, manufactured to standard inch system specifications. The screws maintain precise dimensional tolerances for consistent performance in plastic substrates. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global manufacturing requirements and restricted substance control.
