S-94559A122 6-32 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
• Enhanced torque transmission and reduced tool slippage thanks to the precision 5/64" hex drive design for reliable installation
• Excellent load distribution and vibration resistance provided by the integrated flange, eliminating the need for separate washers
• Quick assembly and reliable holding power with the 6-32 UNC coarse thread and Class 2A fit, ensuring consistent engagement in various materials
• High mechanical strength under stress with 40,000 psi tensile strength and Rockwell B40 hardness for demanding industrial environments
• Smooth, low-profile installation with the rounded button head design, reducing snagging and improving aesthetic integration
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries

Professional Applications & Engineering Value

This 6061 aluminum flanged button head screw is engineered to address common fastening challenges in electronics, machinery, and lightweight structural assemblies. The fully threaded 6-32 UNC coarse thread design ensures rapid installation and strong retention in softer materials or pre-tapped holes, reducing the risk of cross-threading. The integrated flange distributes clamping force evenly, preventing surface damage and minimizing loosening under vibration—a critical advantage in automotive or aerospace components. With a hex drive for secure tool engagement and high tensile strength, it provides reliable performance in applications where weight savings and corrosion resistance are prioritized, such as enclosures, frames, and precision equipment.

Specification Summary & Compliance

This screw meets Class 2A thread fit tolerances for consistent compatibility with standard nuts and threaded holes. Manufacturing adheres to UNC coarse thread standards, with a length of 3/4" and full threading for maximum grip. The product is RoHS 3 (2015/863/EU) compliant under exemption 6(b)-II for lead in aluminum alloys and REACH (EC 1907/2006) compliant regarding SVHC substances, ensuring adherence to international environmental and safety regulations.