S-93306A555 1/4"-20 x 2 1/2" Aluminum Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength-to-weight ratio from 2024 Aluminum construction, providing reliable performance without unnecessary bulk
• Superior corrosion resistance inherent in aluminum material, ensuring long-term durability in demanding environments
• Optimized torque transmission through the external hex drive design, allowing for secure installation with standard tools
• Precision thread engagement with Class 2A UNC coarse threads, enabling quick assembly and reduced cross-threading risks
• Consistent mechanical properties with Rockwell B40 hardness and 30,000 psi tensile strength, maintaining structural integrity under stress
• Full threading along the 2½" length provides maximum grip range and flexibility in material thickness applications
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw delivers exceptional engineering value through its 2024 Aluminum composition and precision Class 2A thread specification. The combination of Rockwell B40 hardness and 30,000 psi tensile strength addresses critical industrial challenges where weight reduction must not compromise structural integrity. The coarse thread spacing and fully threaded design ensure rapid installation in applications ranging from aerospace components to electronic enclosures, while the external hex drive provides positive engagement for torque-critical assemblies. This fastener solves the engineering dilemma of requiring high-strength performance in corrosive environments where steel alternatives would introduce galvanic compatibility issues or excessive weight penalties.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance per UNC specifications, this 1/4"-20 hex head screw maintains consistent thread geometry for reliable mating with corresponding nuts and threaded holes. The 2½" length provides ample engagement surface while the coarse thread spacing ensures optimal performance in various materials. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms adherence to international environmental and safety standards, making this fastener suitable for global supply chain integration and sensitive applications requiring documented material compliance.