S-94559A514 1/4"-20 x 3/4" Aluminum Oversized-Flange Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance and lightweight performance with 6061 aluminum construction, ideal for applications where weight reduction and durability are critical
• Effortless installation and high torque capability provided by the 5/32" hex drive, ensuring secure fastening and reduced tool slippage
• Enhanced load distribution and vibration resistance thanks to the integrated flange, which eliminates the need for a separate washer and improves joint stability
• Reliable and precise thread engagement with UNC coarse threads and Class 2A fit, facilitating quick assembly and reducing cross-threading risks
• High mechanical strength for demanding environments, offering 40,000 psi tensile strength and Rockwell B40 hardness to withstand significant stress
• Sleek, low-profile button head design that provides a finished appearance while minimizing protrusion in compact spaces
• Compliance with international environmental standards, including RoHS 3 and REACH, ensuring safe use in regulated industrial sectors

Professional Applications & Engineering Value

This 6061 aluminum flanged button head screw is engineered to address common challenges in industrial assembly, such as weight management and corrosion in harsh conditions. The fully threaded UNC coarse pattern with Class 2A fit ensures consistent performance in high-vibration applications, from machinery to electronic enclosures. Its flanged design distributes clamping force evenly, reducing surface damage and simplifying installation by integrating washer functionality. The hex drive allows for efficient torque application, making it ideal for automated or manual assembly lines. With a tensile strength of 40,000 psi, it provides reliable fastening in structural and non-structural components, while RoHS and REACH compliance supports use in environmentally conscious industries like aerospace, automotive, and consumer electronics.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy and ease of assembly. It meets RoHS 3 (2015/863/EU) with exemption 6(b)-II and is REACH (EC 1907/2006) compliant, ensuring it aligns with strict environmental and safety regulations for industrial fasteners.