S-93190A870 5/8"-11 x 7" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 Stainless Steel construction, ideal for harsh chemical and marine environments.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing in demanding applications.
• Easy and secure installation with a standard 15/16" external hex head for high-torque driving and a coarse UNC thread for rapid assembly.
• Consistent, reliable fit ensured by the Class 2A thread tolerance, providing smooth engagement and reducing the risk of cross-threading.
• Full-length threading along the entire 7" shaft offers maximum grip and adjustability in a wide range of material thicknesses.
• Compliance with major industrial standards including ASME B18.2.1, ensuring dimensional consistency and interchangeability.
• Environmental and safety compliance with RoHS 3 and REACH regulations, making it suitable for regulated industries.

Professional Applications & Engineering Value

This heavy-duty hex head screw is engineered to solve critical fastening challenges in industries like chemical processing, marine construction, and offshore infrastructure. The core of its value lies in the 316 Stainless Steel material, which provides exceptional resistance to pitting and crevice corrosion, significantly extending service life in corrosive environments. The coarse UNC thread and Class 2A fit are specifically chosen for their ability to handle vibrations and allow for quick assembly in structural applications, reducing labor time. The combination of high tensile strength and a full 7" fully threaded length ensures a secure, long-lasting connection in heavy machinery, large-scale fabrication, and other demanding industrial applications where failure is not an option.

Specification Summary & Compliance

This product features a 5/8"-11 UNC coarse thread with a Class 2A thread fit for standard clearance and reliable assembly. It is manufactured to conform to the dimensional requirements of the ASME B18.2.1 standard. The screw is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.