S-92240A247 1/2"-20 x 8" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and stress.
• Rockwell B70 hardness provides superior durability and resistance to wear and deformation.
• External hex drive and hex head design allows for easy installation and high torque application with standard tools.
• Partially threaded shank offers optimal grip and clamping force for a wide range of materials.
• Class 2A thread fit with UNF fine thread ensures precise, secure fastening and vibration resistance.
• Full compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards are met.

Professional Applications & Engineering Value

This 1/2"-20 UNF hex head screw is engineered to solve critical fastening challenges in demanding sectors like heavy machinery, construction, and infrastructure. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, extending service life in outdoor or chemically aggressive settings. Its partially threaded design concentrates clamping force where it's needed most, reducing the risk of joint loosening under vibration. With an 80,000 PSI tensile strength and Rockwell B70 hardness, it withstands extreme mechanical stresses, making it a reliable choice for structural assemblies, equipment frames, and high-stakes industrial applications where failure is not an option.

Specification Summary & Compliance

This 8" hex head screw features a 1/2"-20 UNF fine thread with a Class 2A thread fit for precise dimensional accuracy and consistent performance. It is manufactured in accordance with ASME B18.2.1 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent industry and environmental standards for safe use.