S-94209A700 1/4"-20 x 1/2" 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 black-coated steel construction for extended service life in harsh environments
- Maximum torque transfer and reduced cam-out with Torx Plus IP30 drive system for reliable installation
- Exceptional holding power in soft materials through Tri-Lobe shank design that creates secure thread-forming connections
- Optimized for aluminum, brass, and copper applications with specialized thread-forming tapping method
- Wide compatibility with standard UNC 1/4"-20 coarse threads for versatile industrial use
- Full-length threading ensures consistent engagement and maximum fastening strength along the entire length
- Regulatory compliance assurance with RoHS 3 and REACH standards for global market acceptance
Professional Applications & Engineering Value
These 1/4"-20 Torx Plus tapping screws are engineered specifically for challenging fastening applications in aluminum, brass, and copper materials. The Tri-Lobe shank design combined with thread-forming technology creates permanent, vibration-resistant connections without the need for pre-tapped holes, eliminating tapping operations and reducing assembly time. The black corrosion-resistant coating on steel substrate provides durable protection against environmental factors, while the Torx Plus IP30 drive system ensures maximum torque transmission without tool slippage, preventing damage to fastener heads and surrounding materials. This combination makes them ideal for industrial assembly where reliability, speed, and corrosion resistance are critical performance factors.
Specification Summary & Compliance
These screws feature UNC 1/4"-20 coarse threads with standard Class 2A tolerances, fully threaded Tri-Lobe shank construction, and 0.5" length with -0.03" to 0" tolerance. The Torx Plus IP30/T30 drive system ensures precise installation, while the pan head design with 0.473" diameter provides optimal bearing surface. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, these fasteners meet international environmental standards for industrial applications requiring 5.5 mm (0.2165") drill bit size preparation.
