S-94559A211 8-32 x 3/8" Aluminum Oversized-Flange Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance and lightweight strength from 6061 aluminum construction, ideal for weight-sensitive applications without sacrificing durability.
• High tensile strength of 40,000 psi ensures reliable performance under load, reducing the risk of fastener failure in demanding environments.
• Easy installation and removal with the hex drive design, providing secure tool engagement and minimizing stripping during assembly.
• Enhanced load distribution and stability thanks to the integrated flange, which eliminates the need for a separate washer and speeds up assembly.
• Consistent thread engagement and interchangeability with UNC coarse threading and Class 2A fit, ensuring compatibility with standard nuts and tapped holes.
• Wide, low-profile rounded head design offers a finished appearance and reduces the risk of snagging, perfect for applications where clearance is limited.
• Full compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets international standards for hazardous substance restrictions.

Professional Applications & Engineering Value

Engineered for precision and reliability, this 8-32 UNC 3/8" aluminum rounded head screw addresses common industrial challenges such as weight reduction and corrosion in machinery, electronics, and automotive assemblies. The 6061 aluminum material provides an excellent strength-to-weight ratio, resisting oxidation while maintaining Rockwell B40 hardness. Its fully threaded and coarse thread design ensures rapid installation and strong holding power in softer materials or where vibration resistance is critical. The hex drive and flanged features simplify maintenance and reduce component count, making it a cost-effective solution for high-volume production and right-hand thread applications that demand consistent performance and regulatory adherence.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and ease of assembly. It is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(b)-II for lead in aluminum alloys, and meets REACH (EC 1907/2006) requirements as of January 17, 2023, ensuring it is free from SVHCs above threshold levels. Manufactured in the inch system, it features precise thread diameter and spacing for reliable performance in industrial fastening applications.