S-92198A606 1 1/2"-6 x 20" 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 industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing
• Optimized torque application through the large external hex head (2 1/4" width) for secure tightening
• Quick and easy installation with coarse UNC threads and Class 2A fit, reducing assembly time
• Enhanced joint stability due to the partially threaded design with 3 1/2" minimum thread length
• Long-term durability in demanding applications, backed by high-strength material properties
• Broad industry compatibility with right-hand threading conforming to inch system standards

Professional Applications & Engineering Value

This heavy-duty hex head screw is engineered for structural and machinery applications where high tensile strength and corrosion resistance are critical. The 18-8 stainless steel material ensures longevity in corrosive or outdoor settings, while the coarse UNC thread and Class 2A thread fit provide reliable engagement in metals and other rigid materials. The partially threaded shank design increases resistance to vibration loosening, making it suitable for construction, heavy equipment, and infrastructure projects. Its external hex drive and substantial head size allow for high torque application, ensuring secure fastening in high-stress assemblies.

Specification Summary & Compliance

This 1 1/2"-6 UNC hex head screw features a 20" length with a minimum thread length of 3 1/2". Threads conform to Class 2A fit and UNC coarse thread standards. The screw is manufactured in accordance with ASME B18.2.1 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.