S-93701A253 4-40 x 1/4" Steel Pan Head Torx Plus Screws
Steel Pan Head Torx Plus 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 harsh industrial environments.
- Enhanced torque transmission and reduced cam-out using Torx Plus IP10 drive for reliable, efficient assembly.
- Precise Class 3A thread fit ensures secure fastening and vibration resistance in critical applications.
- High tensile strength of 40,000 psi provides dependable load-bearing capacity for demanding assemblies.
- Rockwell B70 hardness offers excellent durability and resistance to wear during installation and use.
- Coarse UNC threading allows for quick installation and strong holding power in various materials.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance.
Professional Applications & Engineering Value
These 4-40 UNC thread screws are engineered with black corrosion-resistant steel coating to combat rust and degradation in moisture-prone settings, such as outdoor equipment, automotive components, and electronic enclosures. The Torx Plus IP10 drive minimizes tool slippage, enabling higher torque application and reducing assembly errors in automated or manual processes. With a Class 3A thread fit and coarse thread spacing, they deliver consistent clamping force and rapid installation in metal, plastic, or composite substrates. Ideal for industrial fasteners requiring reliability, these screws support long-term performance in machinery, consumer electronics, and structural assemblies where corrosion resistance and mechanical integrity are paramount.
Specification Summary & Compliance
This product features a 4-40 UNC coarse thread with Class 3A fit for precise dimensional accuracy, fully threaded for uniform engagement. It adheres to standard inch measurements, including a 1/4" length and 0.112" thread diameter. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring the absence of hazardous substances. The rounded pan head design and right-hand threading facilitate easy handling and installation in diverse industrial applications.
