S-92198A752 1/2"-13 x 3 1/4" 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 environments and reducing long-term maintenance costs.
• Superior load-bearing capacity with a high 80,000 psi tensile strength, ensuring reliable performance under significant stress.
• Optimized for quick assembly with a coarse UNC thread and Class 2A fit, providing faster installation and reduced cross-threading risk.
• Enhanced durability and wear resistance from a Rockwell B70 hardness, extending the fastener's service life in demanding applications.
• Secure and easy installation with a standard 3/4" external hex head, allowing for high torque application with common tools.
• Versatile partial threading design offers a strong non-threaded shank for shear strength while the threaded portion ensures secure clamping.
• Guaranteed dimensional consistency and interchangeability by conforming to the rigorous ASME B18.2.1 standard.

Professional Applications & Engineering Value

This 1/2"-13 UNC Hex Head Screw is engineered to solve critical challenges in heavy-duty assembly. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it a prime choice for outdoor equipment, marine applications, and chemical processing plants where environmental factors degrade ordinary fasteners. Its coarse thread and Class 2A thread fit ensure rapid, reliable installation in structural steel, machinery frames, and construction projects, minimizing assembly time and labor costs. The partially threaded design concentrates the tensile strength along the shank, preventing joint failure under vibration and dynamic loads. This combination of a robust external hex drive and high 80,000 psi tensile strength delivers a secure, long-lasting fastening solution for the most demanding industrial and engineering applications.

Specification Summary & Compliance

This fastener features a 1/2"-13 UNC coarse thread with a Class 2A thread fit, ensuring standard dimensional accuracy and interchangeability. It is manufactured in compliance with the ASME B18.2.1 specification for hex head screws. The product is also confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for industrial components.