S-97715A423 4-40 x 1/8" Brass Button Head Hex-Drive Screws
Brass Button Head Hex-Drive 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 brass construction, ideal for harsh industrial environments and electrical applications
- Precise, reliable fastening ensured by Class 3A thread fit, minimizing loosening and vibration failures
- High mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for durable, long-lasting connections
- Easy installation and removal using the 1/16" hex drive, providing secure tool engagement and reducing assembly time
- Optimal thread engagement with fully threaded UNC coarse design, enabling quick installation and strong holding power
- Low-profile, rounded button head offers a smooth finish that reduces snagging and improves safety in compact spaces
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This 4-40 UNC brass rounded button head screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The brass material provides excellent conductivity and resistance to rust, making it ideal for electrical enclosures, marine equipment, and plumbing systems. With a Class 3A thread fit and coarse threading, it ensures rapid installation and maintains tight tolerances in high-vibration environments. The fully threaded design and hex drive allow for consistent torque application, reducing the risk of strip-out and enhancing reliability in automated assembly lines. These features make it a top choice for OEMs and maintenance teams seeking durable, compliant fasteners for precision applications.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured with a right-hand coarse thread, 1/8" length, and fully threaded profile. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) standards, ensuring environmental safety for industrial use.
