S-97715A407 2-56 x 1/2" Brass Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction, ideal for harsh industrial environments requiring long-term reliability.
• Exceptional tensile strength of 50,000 psi ensures secure fastening under high-stress conditions, reducing failure risks.
• Precision Class 3A thread fit guarantees tight tolerances and smooth assembly, minimizing cross-threading and rework.
• Fully threaded design provides maximum grip and load distribution along the entire length for enhanced joint stability.
• Hex drive (0.050") compatibility allows for easy installation with standard tools, improving assembly efficiency.
• RoHS 3 and REACH compliance meets strict environmental regulations, ensuring safe use in regulated industries.
• Rockwell B55 hardness offers excellent durability and wear resistance, extending service life in repetitive applications.

Professional Applications & Engineering Value

These 2-56 UNC brass rounded head screws are engineered to address common industrial challenges such as vibration loosening and material degradation. The coarse thread spacing and Class 3A precision fit enable quick, reliable fastening in applications like electronics enclosures, machinery assemblies, and automotive components, where right-hand threading ensures standard compatibility. The brass material naturally resists corrosion and galvanic reactions, making these screws ideal for electrical and marine environments. With a fully threaded design and rounded button head, they distribute stress evenly and provide a flush finish, reducing protrusion risks in compact spaces. This combination of high tensile strength and regulatory compliance supports efficient, long-lasting performance in precision-driven sectors.

Specification Summary & Compliance

This product adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy, including a thread diameter of 0.086" and coarse spacing. Manufacturing conforms to industry norms for right-hand threads and fully threaded configurations. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloys and REACH (EC 1907/2006) adherence, ensuring environmental and safety standards are met for global industrial use.