S-90935A211 Length 2 1/2" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior corrosion resistance with black-oxide steel coating for extended service life in demanding industrial environments
- Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapped holes
- Optimized for 0.025" maximum thickness materials with precise No. 29 drill bit compatibility for accurate installations
- Secure Phillips No. 2 drive system provides reliable torque transfer and prevents cam-out during installation
- Full threading with pointed tip ensures maximum grip length and easy starting in sheet metal applications
- Right-hand thread direction with 15 threads per inch delivers consistent, reliable fastening performance
- Environmental compliance assurance meets RoHS 3 and REACH regulations for safe, sustainable manufacturing
Professional Applications & Engineering Value
These black-oxide steel tapping screws are engineered specifically for sheet metal applications where durability and corrosion resistance are critical. The thread forming design (Type A/AB) eliminates the need for pre-tapped holes, creating strong, vibration-resistant threads that won't loosen under stress. The Phillips pan head provides a low-profile, secure fastening solution that sits flush against surfaces while the fully threaded construction ensures maximum holding power across the entire 2-1/2" length. Ideal for HVAC systems, electronic enclosures, and industrial equipment assembly, these screws solve common challenges of material fatigue and environmental degradation in metal fabrication projects.
Specification Summary & Compliance
This No. 8 x 2-1/2" tapping screw features a 0.164" thread diameter with 15 threads per inch and standard Class 2A thread tolerances. The thread forming tapping method follows industry-standard Type A/AB specifications for sheet metal applications. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe, sustainable industrial use. Compatible with No. 29 drill bits (0.136" diameter) for precise installation in materials up to 0.025" maximum thickness.
