S-90198A774 Length 3" 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 316 stainless steel construction for long-lasting performance in harsh environments
- Efficient thread forming technology creates strong, permanent threads in sheet metal without pre-tapping
- Optimal countersinking with 82° flat head profile for flush mounting and clean finished appearance
- Full threading along 3" length provides maximum grip and load distribution across the entire fastener
- Reliable Phillips drive (No. 3 size) ensures secure installation with standard tools
- Precision-engineered dimensions including 0.216" thread diameter and 11 TPI for consistent performance
- Environmental compliance with RoHS 3 and REACH regulations for safe industrial applications
Professional Applications & Engineering Value
These 316 stainless steel tapping screws deliver exceptional value in sheet metal applications where corrosion resistance and structural integrity are paramount. The thread forming Type A/AB design eliminates the need for separate tapping operations, reducing installation time and labor costs while creating stronger, more reliable threads that resist vibration loosening. The fully threaded configuration ensures maximum engagement in materials up to 0.025" thickness, providing superior pull-out resistance in HVAC systems, electrical enclosures, and industrial equipment. The Phillips flat head with standard 82° countersink angle allows for clean, flush installations that meet aesthetic requirements while maintaining structural integrity in demanding environments.
Specification Summary & Compliance
These No. 12 x 3" tapping screws feature precision thread forming technology with 0.216" thread diameter and 11 threads per inch, designed for optimal performance in sheet metal applications. The standard flat head profile with 82° countersink angle ensures proper seating, while the Type A/AB thread form provides reliable fastening without pre-tapped holes. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, these screws meet the highest standards for industrial fastener applications requiring corrosion resistance and environmental responsibility.
