S-93701A259 4-40 x 3/8" 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 a black corrosion-resistant coating, extending service life in harsh industrial environments.
- Enhanced torque transmission and reduced cam-out thanks to the Torx Plus IP10/T10 drive, ensuring secure fastening and tool longevity.
- Precise and reliable thread engagement with a Class 3A thread fit, providing a secure, vibration-resistant connection.
- High tensile strength of 40,000 psi for dependable performance under significant load and stress.
- Excellent material hardness (Rockwell B70) offers superior durability and resistance to wear and deformation.
- Versatile pan head design with a standard rounded profile for a finished appearance and good bearing surface.
- Full compliance with RoHS 3 and REACH regulations, ensuring environmental safety and suitability for global markets.
Professional Applications & Engineering Value
Engineered for demanding applications, these 4-40 UNC Torx Plus pan head screws are a robust solution for assembly lines where corrosion resistance and high-strength fastening are critical. The black corrosion-resistant coated steel construction protects against degradation in moisture-prone or chemically aggressive environments, common in electronics, automotive, and outdoor equipment. The Torx Plus drive (IP10/T10) addresses the common industrial pain point of tool slippage and fastener head stripping, enabling higher torque application and improving assembly efficiency. The coarse UNC thread and Class 3A fit ensure rapid installation and a vibration-resistant hold, making them ideal for securing components in machinery, enclosures, and structural frames where reliability is non-negotiable.
Specification Summary & Compliance
This screw adheres to the UNC coarse thread standard with a precise Class 3A thread fit for consistent quality. Key dimensional specifications include a 4-40 thread size, a 3/8" length, and a 0.219" head diameter. Manufacturing and material compliance is confirmed, meeting RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they are free from hazardous substances and suitable for use in regulated industries.
