S-92198A601 1 1/4"-7 x 18" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 80,000 PSI ensures reliable performance in demanding structural and heavy machinery applications.
• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh environments and outdoor use.
• High durability and wear resistance provided by Rockwell B70 hardness, extending service life and reducing replacement frequency.
• Secure and easy installation with an external hex drive and large 1 7/8" head width, allowing for high torque application without stripping.
• Optimized load distribution through a partially threaded design, concentrating strength where it's needed most along the 18" length.
• Reliable coarse UNC threading with Class 2A fit ensures quick assembly and vibration resistance in industrial settings.
• Broad compatibility with standard inch-system components, facilitating easy integration into existing assemblies.

Professional Applications & Engineering Value

This heavy-duty hex head screw is engineered to address critical challenges in construction, manufacturing, and infrastructure projects where high tensile strength and corrosion resistance are paramount. The 18-8 stainless steel material prevents rust and degradation in humid or chemically aggressive environments, reducing maintenance costs and downtime. Its coarse UNC thread and Class 2A thread fit provide excellent grip and vibration resistance, making it ideal for securing large structural components, heavy machinery bases, and transportation equipment. The external hex drive and substantial head size allow for efficient installation with standard tools, speeding up assembly in time-sensitive industrial applications while ensuring a secure, long-lasting fastening solution.

Specification Summary & Compliance

This product adheres to ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. The UNC coarse thread maintains a Class 2A thread fit for consistent engagement and ease of assembly. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance control. Manufactured to deliver reliable performance with a tensile strength of 80,000 PSI and Rockwell B70 hardness, it meets rigorous industrial standards for quality and durability.