S-97246A112 1/4"-20 x 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 galvanic-barrier coated 18-8 stainless steel construction, ideal for harsh industrial environments.
- Efficient self-drilling installation thanks to the integrated No. 5 drill tip, eliminating the need for pre-drilling and saving labor time.
- Excellent thread retention through thread forming (CSD) technology, creating strong, reliable threads in steel, stainless steel, and sheet metal.
- Enhanced load distribution and vibration resistance provided by the flanged hex head design.
- Quick and secure fastening with the external hex drive and coarse UNC thread, allowing for high-speed assembly.
- Maximum material penetration capability, drilling up to 1/2" thickness in metal substrates.
- Environmental and safety compliance with RoHS 3 regulations, ensuring safe use in various applications.
Professional Applications & Engineering Value
This 1/4"-20 x 3" galvanic-barrier coated stainless steel tapping screw is engineered to address common challenges in metal fabrication and assembly. Its thread forming (CSD) design and No. 5 drill tip enable direct installation into steel, stainless steel, and sheet metal without pre-tapping, reducing hole preparation steps and minimizing the risk of material fatigue. The 18-8 stainless steel material with a specialized coating provides a galvanic barrier, preventing corrosion in mixed-metal environments and extending service life. The flanged hex head offers a larger bearing surface, distributing clamp load effectively to prevent loosening under vibration, making it ideal for automotive, HVAC, and structural metalwork where reliability and speed are critical.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with a right-hand thread direction and is fully threaded for consistent engagement. It adheres to standard dimensional tolerances for inch-series fasteners and is manufactured as a CSD type thread forming tapping screw. The product is RoHS 3 (2015/863/EU) Compliant, ensuring it meets strict environmental and safety standards for hazardous substance restrictions.
