S-93306A543 1/4"-20 x 1 1/4" Aluminum Hex Head Screws

Key Features & Benefits at a Glance

• High strength-to-weight ratio from 2024 aluminum construction, providing durable performance without adding unnecessary bulk
• Superior corrosion resistance inherent to aluminum alloy, ensuring long-term reliability in various industrial environments
• Excellent mechanical properties with Rockwell B40 hardness and 30,000 psi tensile strength for dependable load-bearing capability
• Quick installation and removal with external hex drive design and standard 7/16" head width for common tool compatibility
• Secure thread engagement through UNC coarse threading and Class 2A fit, preventing cross-threading and ensuring consistent fastening
• Maximum grip length with fully threaded 1-1/4" design, providing superior holding power across the entire fastener length
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated applications

Professional Applications & Engineering Value

These 2024 aluminum hex head screws deliver exceptional value in applications where weight reduction, corrosion resistance, and structural integrity are paramount. The UNC coarse thread pattern combined with Class 2A thread fit ensures reliable performance in vibration-prone environments, reducing the risk of loosening under dynamic loads. The fully threaded design provides maximum surface contact for enhanced clamping force distribution, making these external hex drive fasteners ideal for assembly lines, machinery, and structural frameworks requiring repeated disassembly. The 30000 psi tensile strength and Rockwell B40 hardness offer dependable performance in aerospace, automotive, and electronic enclosures where aluminum's non-magnetic properties and weight savings provide significant engineering advantages over steel alternatives.

Specification Summary & Compliance

This 1/4"-20 UNC hex head screw features precise Class 2A thread fit tolerances ensuring consistent performance across industrial applications. Manufactured to UNC coarse thread standards with right-hand threading and full threading along the 1-1/4" length. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, confirming environmental safety and regulatory adherence for global industrial use. The combination of dimensional accuracy and material certification makes these screws suitable for quality-critical assemblies requiring documented compliance.