S-92198A521 1/2"-13 x 13 1/2" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• High tensile strength of 80,000 psi ensures reliable load-bearing capacity and prevents fastener failure under stress.
• Rockwell B70 hardness provides excellent durability and resistance to wear, extending the screw's service life.
• Class 2A thread fit with UNC coarse threading allows for easy, quick assembly and disassembly while maintaining secure fastening.
• Partially threaded design offers superior clamping force and vibration resistance in structural and machinery applications.
• External hex drive and 3/4" head width enable high-torque installation with standard tools, reducing installation time and effort.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees consistent 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 fastening challenges in demanding sectors such as construction, heavy machinery, and industrial equipment. The 18-8 Stainless Steel material delivers outstanding corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or extreme weather. Its partially threaded configuration and coarse UNC threads provide enhanced grip and vibration damping, preventing loosening in dynamic loads. With an 80,000 psi tensile strength and Rockwell B70 hardness, it withstands high-stress conditions without deformation. The external hex drive ensures efficient installation with common wrenches, streamlining maintenance and assembly processes in industrial applications.

Specification Summary & Compliance

This screw features a 1/2"-13 UNC thread with Class 2A fit for precise dimensional accuracy and reliable performance. 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 from hazardous substances and safe for use in regulated markets.