S-94444A116 3/8"-16 x 1 1/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing maintenance needs.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and in demanding applications.
• Coarse UNC thread and Class 2A fit provide faster assembly, easier alignment, and reduced risk of cross-threading.
• Full threading along the 1-1/4" length offers maximum grip and uniform clamping force across the entire fastener.
• External hex drive and hex head design allow for high torque application with standard tools, ensuring secure tightening.
• Rockwell B70 hardness provides excellent durability and resistance to wear, extending the screw's service life.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility for industrial use.

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and environmental degradation. The Black-Oxide 18-8 Stainless Steel construction offers superior corrosion resistance, making it suitable for outdoor equipment, marine applications, and chemical processing plants where moisture and corrosive agents are present. Its coarse thread and Class 2A thread fit ensure quick and reliable installation, reducing assembly time and minimizing the risk of thread damage. With an 80,000 psi tensile strength and Rockwell B70 hardness, this fully threaded screw maintains integrity under high stress, providing long-term reliability in machinery, structural frameworks, and heavy-duty fastening systems. The external hex drive facilitates easy use with common wrenches, enhancing efficiency in maintenance and production lines.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 2A thread fit for standard dimensional accuracy and ease of assembly. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring consistent quality and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for hazardous substance restrictions.