S-92198A511 3/8"-16 x 16" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing long-term replacement costs.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and in demanding structural applications.
• Rockwell B70 hardness provides excellent durability and resistance to wear, extending the fastener's service life.
• Coarse UNC thread and Class 2A fit offer faster assembly and reliable engagement, even in materials where fine threads might strip.
• Partially threaded design allows for precise clamping force on specific joint sections, preventing loosening from vibration.
• External hex drive and standard hex head enable high-torque installation with common tools, simplifying maintenance and assembly.
• Full compliance with ASME B18.2.1, RoHS 3, and REACH guarantees material quality, safety, and global regulatory acceptance for your projects.

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw is engineered to solve critical challenges in industrial assembly and heavy-duty construction. Its 18-8 Stainless Steel composition provides inherent corrosion resistance, making it suitable for outdoor structures, marine equipment, and chemical processing plants where moisture and corrosive agents are present. The partially threaded shank ensures that the unthreaded portion bears directly against the materials, creating a robust shear plane that resists vibrational loosening—a common failure point in machinery and structural frameworks. The coarse thread design facilitates quicker installation in steel, wood, and cast materials, reducing labor time while the external hex drive allows for high torque application with standard wrenches. This combination of material integrity and thoughtful mechanical design delivers long-term reliability, minimizing downtime and maintenance in demanding engineering applications.

Specification Summary & Compliance

This product features a 3/8"-16 UNC thread with a Class 2A thread fit, ensuring standard dimensional accuracy and interchangeability. It is manufactured in compliance with the ASME B18.2.1 standard for hex bolts and is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.