S-92198A932 1"-8 x 8" 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 environments and reducing maintenance costs.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and prevents mechanical failure.
• Rockwell B70 hardness provides superior durability and resistance to wear, extending the fastener's service life.
• Coarse UNC thread with Class 2A fit allows for faster assembly, easier alignment, and reduced risk of cross-threading.
• Partially threaded design offers optimal clamping force where needed, improving joint integrity in structural applications.
• External hex drive and large 1 1/2" head enable high-torque installation with standard tools, speeding up project timelines.
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 1"-8 UNC hex head screw is engineered to solve critical challenges in heavy-duty industrial applications. The 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, making it suitable for outdoor infrastructure, marine equipment, and chemical processing plants where corrosion is a major concern. The coarse thread spacing and Class 2A thread fit ensure quick and secure fastening in wood, metal, and composite materials, reducing installation time and labor costs. With an 8-inch length and partial threading, it delivers precise clamping in construction, machinery assembly, and transportation sectors, preventing loosening under vibration and dynamic loads. Its external hex drive allows for high torque application, ensuring tight connections in critical joints without stripping, thereby enhancing overall structural reliability and operational safety.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit tolerances and UNC (Unified Coarse) thread standards, ensuring dimensional accuracy and interchangeability. It is manufactured in compliance with ASME B18.2.1 specifications for hex head screws and meets regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free from hazardous substances and safe for industrial use worldwide.