S-98511A121 2-56 x 1/4" Aluminum Socket Head Screws
Aluminum Socket Head 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 strength-to-weight ratio from 7075 aluminum construction, providing robust fastening without adding unnecessary bulk
- Exceptional corrosion resistance ensures long-term reliability in demanding industrial environments
- Precision Class 3A thread fit delivers secure, vibration-resistant connections with minimal play
- Standard hex socket drive with 5/64" compatibility for easy installation with common tools
- Coarse UNC threading enables quick assembly and disassembly while maintaining holding power
- Fully threaded design provides consistent engagement along the entire 1/4" length
- Environmental compliance with RoHS 3 and REACH regulations for global market acceptance
Professional Applications & Engineering Value
This 7075 aluminum socket head cap screw combines lightweight properties with exceptional mechanical strength, making it ideal for applications where weight reduction is critical without compromising structural integrity. The 2-56 UNC coarse threads with Class 3A precision fit ensure reliable performance in vibration-prone environments, while the standard hex socket drive allows for high-torque installation in confined spaces. Engineers specify these fasteners for aerospace components, precision instrumentation, and high-performance machinery where corrosion resistance and dimensional stability are paramount. The fully threaded design provides maximum engagement in thin materials and complex assemblies, solving common challenges with strip-out and loosening in dynamic applications.
Specification Summary & Compliance
Manufactured to inch system specifications with Class 3A thread fit tolerance for precision applications. Features 2-56 UNC coarse threads with right-hand orientation and standard socket head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 5/64" hex drive accommodates standard industrial tools, while the 1/4" length provides versatile fastening capability across various material thicknesses.
