S-92750A104 4-40 x 1/4" 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 zinc-plated steel construction for extended service life in industrial environments
- Maximum torque transmission through T10 Torx drive design, reducing cam-out and tool wear
- Secure vibration-resistant fastening with Tri-Lobe shank design that prevents loosening under stress
- Efficient thread forming capability in sheet metal applications without requiring pre-tapped holes
- Optimized for No. 44 drill bits (0.086" diameter) ensuring proper fit and reduced installation time
- Reliable coarse UNC threading providing strong holding power in various metal thicknesses
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing use
Professional Applications & Engineering Value
These 4-40 UNC thread forming screws are engineered specifically for sheet metal applications where reliable fastening is critical. The zinc-plated steel construction provides essential corrosion protection in manufacturing environments, while the Tri-Lobe shank design creates permanent deformation in the host material, eliminating back-out issues common in vibrating equipment. The T10 Torx drive system delivers superior torque transmission compared to traditional drives, reducing installation time and preventing fastener damage. These tapping screws form their own threads in pre-drilled holes, streamlining assembly processes in metal fabrication, electronics enclosures, and industrial equipment where coarse UNC threading ensures rapid installation and dependable performance.
Specification Summary & Compliance
Manufactured to precise UNC thread standards with Class 2A fit tolerance, these fasteners feature a 1/4" length and No. 4 screw size with fully threaded right-hand coarse threading. The pan head style provides a low-profile finish with 0.219" head diameter for flush mounting. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications and electronics manufacturing.
