S-94444A123 1/2"-13 x 1 1/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing maintenance costs.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads, minimizing the risk of fastener failure.
• Rockwell B70 hardness provides excellent durability and wear resistance for long service life in demanding applications.
• Fully threaded UNC coarse thread design offers superior grip and faster installation compared to fine-thread alternatives.
• External hex drive and standard 3/4" head width allow for easy installation and removal with common tools, improving assembly efficiency.
• Class 2A thread fit ensures consistent, reliable engagement with nuts and tapped holes, reducing assembly issues.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees product quality, safety, and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw is engineered to address critical challenges in industrial and construction settings. The Black-Oxide 18-8 Stainless Steel construction provides a robust defense against rust and corrosion, making it suitable for outdoor machinery, marine equipment, and chemical processing plants where moisture and corrosive agents are prevalent. The coarse thread and fully threaded design enhance vibration resistance and load distribution, preventing loosening in high-stress assemblies like structural frameworks, heavy machinery, and transportation vehicles. With an external hex drive and standardized dimensions, it streamlines maintenance and reduces downtime, offering a reliable industrial hex screw solution that meets rigorous performance and regulatory demands.

Specification Summary & Compliance

This screw features a 1/2"-13 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and reliable mating. It is manufactured in accordance with ASME B18.2.1 specifications, ensuring consistency and interoperability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for various industrial and international applications.