S-97975A123 Length 3/4" 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, ensuring long-term reliability in demanding environments
- Effortless installation in plastic materials using the DST thread-forming design, eliminating the need for pre-tapped holes
- Secure, non-slip fastening provided by the Phillips No. 1 drive, enabling efficient torque transfer and reduced cam-out
- Optimized for plastic applications with a blunt tip and fully threaded shank, minimizing material stress and cracking
- Precise compatibility with No. 44 drill bits (0.086" diameter), ensuring accurate hole sizing and strong thread engagement
- Comprehensive regulatory compliance with RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices
- Versatile pan head design offering a low-profile, rounded finish that distributes clamping force evenly
Professional Applications & Engineering Value
These No. 4 x 3/4" tapping screws are specifically engineered for plastic fastening applications, where traditional threaded fasteners may fail. The DST thread-forming method displaces material to create strong, permanent threads without generating chips, reducing the risk of contamination in sensitive assemblies. Made from 410 Stainless Steel, they resist corrosion in humid or chemical-exposed settings, extending service life in industrial equipment, electronic enclosures, and automotive components. The Phillips drive and 24 TPI fine thread pitch ensure consistent clamping force, preventing loosening under vibration while the blunt tip guides smoothly into pre-drilled holes, preserving plastic integrity.
Specification Summary & Compliance
This screw features a 0.112" thread diameter with 24 threads per inch and 3/4" length, manufactured to standard inch system tolerances for reliable interchangeability. The thread-forming DST design adheres to common industrial specifications for tapping screws in plastics. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards.
