S-94061A221 Length 1 3/4" 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 zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments.
- Efficient self-drilling capability with No. 2 drill tip, eliminating the need for pre-drilling and speeding up assembly in steel and sheet metal up to 0.1" thickness.
- Secure, flush installation thanks to the standard oval head profile and 82° countersink angle, providing a smooth finish and reducing snagging risks.
- Reliable thread-forming design creates strong, permanent threads in base materials, minimizing loosening under vibration and load.
- Optimized drive engagement with Phillips No. 2 drive style, offering consistent torque transfer and reducing cam-out during installation.
- Full-threaded shank ensures maximum grip and distribution of clamping force along the entire 1-3/4" length for enhanced joint integrity.
- Compliance with environmental standards including RoHS 3 and REACH, making them suitable for regulated industries and global supply chains.
Professional Applications & Engineering Value
These No. 8 zinc-plated steel tapping screws are engineered to address common challenges in metalworking and fabrication, such as time-consuming pre-drilling and thread failure. The thread-forming BSD design and fully threaded profile work together to create durable, high-strength connections in steel and sheet metal applications, reducing installation steps and improving production efficiency. The oval head with Phillips drive ensures a secure, low-profile fit, while the zinc plating provides essential corrosion protection, extending service life in harsh conditions. Ideal for HVAC, automotive, and construction assemblies, these screws deliver consistent performance where reliability and compliance with RoHS and REACH standards are critical.
Specification Summary & Compliance
This product features a No. 8 screw size with a 0.164" thread diameter and 18 threads per inch, adhering to standard inch measurements. The thread-forming tapping method and fully threaded design ensure precise fit and high pull-out resistance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming adherence to environmental and safety regulations for industrial use.
