S-97690A154 4-40 x 3/4" ASME B18.6.3 Steel Pan Head Torx Screws
Steel Pan Head Torx 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, extending service life in harsh industrial environments.
- Enhanced torque transmission and reduced cam-out thanks to the T10 Torx drive, ensuring secure fastening and minimizing tool slippage.
- High durability and strength with Rockwell B70 hardness, providing reliable performance under mechanical stress.
- Broad compatibility and easy installation with 4-40 UNC coarse threads and Class 2A fit, ensuring precise engagement in various materials.
- Secure and low-profile fastening with the rounded pan head design, distributing clamp load effectively while maintaining a neat appearance.
- Full threading for maximum grip along the entire 3/4" length, offering consistent holding power in deep or varied applications.
- Compliance with rigorous standards including ASME B18.6.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
These 4-40 UNC zinc-plated steel rounded head screws are engineered to address common industrial challenges such as vibration loosening and corrosion. The T10 Torx drive provides superior torque control, reducing the risk of fastener failure in high-stress assemblies like machinery, electronics, and automotive components. The coarse thread design ensures quick installation and reliable holding in softer materials, while the black painted finish adds an extra layer of protection and aesthetic consistency. Ideal for applications requiring Rockwell B70 hardness and fully threaded engagement, these screws deliver long-term reliability in demanding environments, from manufacturing lines to outdoor equipment.
Specification Summary & Compliance
This product features precise Class 2A thread fit and adheres to ASME B18.6.3 manufacturing standards for dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance control. The right-hand UNC coarse threads and consistent 3/4" length provide reliable performance across various industrial fastening tasks.
