S-94209A495 4-40 x 5/8" 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, extending service life in demanding industrial environments
- Maximum torque transfer and reduced cam-out thanks to Torx Plus IP10 drive, ensuring reliable installation and preventing tool slippage
- Exceptional holding power in soft materials like aluminum, brass, and copper due to the Tri-Lobe shank design that displaces material during thread forming
- Simplified installation without pre-tapping as the thread forming design creates strong, permanent threads in ductile metals
- Wide compatibility with standard UNC 4-40 coarse threads for easy replacement and integration into existing assemblies
- Secure regulatory compliance meeting RoHS 3 and REACH standards for safe use in global industrial markets
- Optimized 5/8" length with pan head design provides versatile fastening solutions with a low-profile, rounded head for various applications
Professional Applications & Engineering Value
These 4-40 UNC thread forming screws are specifically engineered to address common challenges in fastening aluminum, brass, and copper components. The black corrosion-resistant coated steel material provides enhanced durability against environmental factors, while the Tri-Lobe shank cross-section and thread forming method eliminate the need for separate tapping operations, reducing assembly time and costs. The Torx Plus IP10 drive ensures high torque transmission without stripping, making them ideal for automated assembly lines and high-vibration applications in electronics, automotive, and machinery sectors where reliable fastening in soft metals is critical.
Specification Summary & Compliance
This screw features UNC 4-40 coarse threads with a Class 2A thread fit and length tolerance of -0.03" to 0". The thread forming design conforms to standard tapping screw specifications for use with No. 44 drill bits (0.086" diameter). Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for industrial procurement.
