S-90485A469 Length 20 mm 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 18-8 stainless steel construction for long-lasting performance in harsh environments
- Efficient thread forming design creates strong, permanent threads in plastic materials without pre-tapping
- Optimized Phillips No. 2 drive ensures secure tool engagement and reduces cam-out during installation
- Precision 90° countersink angle allows for flush mounting and clean finished appearance
- Full threading along 20mm length provides maximum grip strength and uniform load distribution
- Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global industrial applications
- Metric M4 sizing with 1.79mm pitch ensures compatibility with international engineering specifications
Professional Applications & Engineering Value
These M4 thread forming screws are specifically engineered for plastic assembly applications where traditional fastening methods often fail. The TRS (Thread Rolling Screw) design displaces material rather than cutting it, creating stronger threads that resist stripping and pull-out forces. Made from 18-8 stainless steel, these screws maintain integrity in corrosive environments while the Phillips flat head with standard profile ensures clean, flush installations. The combination of blunt tip and fully threaded shank provides controlled entry and maximum thread engagement, making them ideal for electronic enclosures, automotive trim, and consumer products where vibration resistance and aesthetic finish are critical.
Specification Summary & Compliance
This M4 x 20mm tapping screw features metric threading with approximately 1.79mm pitch and fully threaded configuration for consistent performance. The flat head design incorporates a 90° countersink angle compatible with standard drill preparations. Manufactured to precise dimensional standards with 8.4mm head diameter and 2.9mm head height for reliable fit. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and chemical restriction adherence for industrial use.
