S-98511A241 4-40 x 1/2" Aluminum Socket Head Screws

Key Features & Benefits at a Glance

• Superior strength-to-weight ratio with 7075 aluminum construction, ideal for applications where reducing weight without compromising durability is critical.
• Precise and reliable fastening ensured by the Class 3A thread fit, providing tighter tolerances for secure assemblies in demanding environments.
• High-torque installation capability with the 3/32" hex drive and standard socket head profile, allowing for efficient assembly with standard tools.
• Excellent thread engagement from the 4-40 UNC coarse thread and fully threaded design, offering consistent clamping force along the entire 1/2" length.
• Enhanced corrosion resistance inherent to 7075 aluminum, extending service life in various industrial conditions.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.
• Right-hand thread direction for standard, intuitive installation and removal, streamlining maintenance and assembly processes.

Professional Applications & Engineering Value

This 7075 aluminum socket head cap screw is engineered to address common challenges in precision assemblies, such as in aerospace, robotics, and high-performance electronics, where lightweight yet robust fastening is essential. The 4-40 UNC coarse thread and Class 3A fit provide exceptional vibration resistance and load distribution, reducing the risk of loosening under dynamic stresses. Its fully threaded design ensures uniform stress along the entire length, minimizing points of failure. The hex drive and standard socket head allow for easy access in confined spaces, enhancing installation efficiency. Made from 7075 aluminum, it offers an optimal balance of strength and corrosion resistance, making it a reliable choice for industrial applications requiring durability without the weight of steel.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 3A thread fit for high precision, featuring a coarse thread spacing and right-hand direction. Dimensions include a 1/2" length, 0.183" head diameter, and 3/32" hex drive size. It is manufactured from 7075 aluminum and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for various industrial uses.