S-92610A108 4-40 x 1/4" ASTM A574 Torx Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 180,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Black-oxide coating on alloy steel provides enhanced corrosion resistance and durability in harsh industrial environments.
• Torx Plus IP10 drive system delivers superior torque transmission and minimizes cam-out, allowing for precise and efficient installation.
• Class 3A thread fit offers tight tolerances for secure, vibration-resistant fastening in critical assemblies.
• Fully threaded design ensures consistent grip and load distribution along the entire length for maximum holding power.
• Rockwell C39 hardness provides excellent wear resistance, extending the screw's service life in demanding conditions.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for safe, reliable use.

Professional Applications & Engineering Value

This 4-40 UNC Socket Head Cap Screw is engineered to address common challenges in precision machinery, automotive, and aerospace applications where vibration resistance and high tensile strength are critical. The black-oxide alloy steel construction combats corrosion and wear, while the Torx Plus IP10 drive prevents stripping and enables higher torque application without slippage. Its fully threaded and Class 3A fit ensures secure fastening in tight spaces, reducing maintenance needs and improving assembly reliability in demanding industrial settings.

Specification Summary & Compliance

This screw features a 4-40 UNC coarse thread with Class 3A tolerance for precise fit, a length of 1/4 inch, and a right-hand thread direction. It meets ASTM A574 specifications for high-strength socket head cap screws and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and reliability in regulated industries.