S-94559A618 5/16"-18 x 1" 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
- Superior corrosion resistance and lightweight performance with 6061 aluminum construction, ideal for weight-sensitive applications
- Enhanced installation efficiency through UNC coarse threading and Class 2A thread fit, ensuring quick assembly with standard tools
- High tensile strength of 40,000 psi provides reliable load-bearing capacity for demanding industrial environments
- Integrated flange design eliminates the need for separate washers, distributing load evenly and reducing component count
- Hex drive compatibility with 3/16" drive size allows for secure torque application and prevents stripping during installation
- Rounded button head profile offers a smooth, low-profile finish that minimizes snagging in exposed assemblies
- Full compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for regulated industries
Professional Applications & Engineering Value
Engineered for precision and durability, this 6061 aluminum rounded head screw combines high tensile strength (40,000 psi) with a flanged hex drive design to address common industrial challenges such as vibration loosening and corrosion. The UNC coarse thread and Class 2A thread fit facilitate rapid installation in machinery, electronics, and structural frameworks, while the fully threaded construction ensures consistent clamping force. Its Rockwell B40 hardness and aluminum material make it ideal for applications requiring lightweight yet robust fastening, from aerospace components to automotive assemblies, without compromising on RoHS 3 and REACH compliance for global supply chain integration.
Specification Summary & Compliance
This screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy, featuring a 5/16"-18 coarse thread and right-hand direction. It is manufactured to meet RoHS 3 (2015/863/EU) with exemption 6(b)-II for lead in aluminum alloys and is fully REACH (EC 1907/2006) compliant, ensuring regulatory adherence for industrial and commercial use.
