S-93306A912 1/4"-20 x 4" Aluminum Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength-to-weight ratio from 2024 Aluminum construction, ideal for applications where reducing component weight is critical without sacrificing structural integrity.
• High tensile strength of 30,000 psi ensures reliable performance under significant load and stress in demanding industrial environments.
• Rockwell B40 hardness provides excellent resistance to wear and deformation, extending the screw's service life.
• Coarse UNC thread with Class 2A fit offers faster assembly, reduced cross-threading risk, and consistent performance in various materials.
• External hex drive and hex head design allows for high-torque installation with standard tools, ensuring secure fastening and ease of maintenance.
• Full threading along the 4-inch length maximizes grip and load distribution, providing versatile fastening solutions for deep or variable material thicknesses.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and material sustainability, meeting global industry standards for responsible manufacturing.

Professional Applications & Engineering Value

Engineered for precision and durability, this 1/4-20 UNC hex head screw in 2024 Aluminum addresses common industrial challenges such as corrosion sensitivity and weight management in assemblies. The coarse thread spacing and Class 2A thread fit ensure quick, reliable installations in metals, plastics, and composites, minimizing assembly time and reducing the risk of thread damage. Its fully threaded design provides uniform stress distribution, making it ideal for structural frameworks, machinery, and transportation equipment where vibration resistance and long-term stability are paramount. The external hex drive facilitates high-torque applications, supporting efficient maintenance and disassembly in aerospace, automotive, and heavy machinery sectors.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. Manufactured to precise inch system measurements, it includes a 1/4"-20 thread size and 4-inch length. Compliance is confirmed with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring the absence of hazardous substances and alignment with international environmental and safety regulations for industrial fasteners.