S-94559A222 8-32 x 1/4" Aluminum Oversized-Flange Button Head Hex-Drive Screws
Aluminum Oversized-Flange Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- High strength-to-weight ratio from 6061 aluminum construction, ideal for weight-sensitive applications without sacrificing durability
- Superior corrosion resistance inherent in aluminum material, ensuring long-lasting performance in various industrial environments
- Easy installation and removal with 5/64" hex drive, providing secure tool engagement and reducing assembly time
- Enhanced load distribution thanks to the wide button head and integrated flange, minimizing surface damage and improving joint integrity
- Reliable thread engagement with UNC coarse threads and Class 2A fit, ensuring consistent fastening in coarse-thread applications
- Full threading along the 1/4" length offers maximum grip and adjustment flexibility in shallow or deep materials
- Compliance with environmental regulations including RoHS 3 and REACH, making it suitable for global industrial supply chains
Professional Applications & Engineering Value
This 8-32 UNC flanged screw with a rounded head and 6061 aluminum construction addresses critical needs in lightweight assembly and corrosion-prone settings. The coarse thread design ensures quick installation and reliable holding power in soft materials or where vibration resistance is key, while the flanged button head eliminates the need for separate washers, streamlining inventory and reducing part count. With a tensile strength of 40,000 psi and Rockwell B40 hardness, it provides dependable performance in electronics, automotive, and machinery applications where aluminum fasteners prevent galvanic corrosion. The fully threaded shank and hex drive offer precision control, making it a versatile choice for engineers seeking efficient, compliant solutions.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It meets RoHS 3 (2015/863/EU) compliance under exemption 6(b)-II for lead in aluminum alloys and is REACH (EC 1907/2006) compliant, ensuring it aligns with international environmental and safety regulations for industrial use.
