S-92186A981 1 1/2"-6 x 3 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-load applications
• Reliable coarse threading (UNC) ensures faster assembly and reduced cross-threading risks in industrial settings
• Optimized partial threading provides secure fastening while minimizing material stress concentration
• Standardized external hex drive delivers maximum torque transfer with common tools for efficient maintenance
• Precision Class 2A thread fit guarantees consistent engagement and vibration resistance in dynamic systems
• Full regulatory compliance with ASME B18.2.1, RoHS 3, and REACH for global project acceptance

Professional Applications & Engineering Value

This 1 1/2"-6 UNC hex head screw in 316 Stainless Steel delivers critical performance advantages for demanding industrial applications. The coarse UNC thread configuration enables rapid installation in structural steel, heavy machinery, and marine equipment where vibration resistance is paramount. With partial threading design, it eliminates unnecessary thread contact points that could compromise joint integrity under dynamic loads. The external hex drive accommodates high-torque applications while the 70,000 psi tensile strength ensures reliable performance in elevated temperature and corrosive environments typical of chemical processing, offshore platforms, and wastewater treatment facilities. This combination of material properties and mechanical design addresses common failure modes in heavy-duty fastening while maintaining compliance with international engineering standards.

Specification Summary & Compliance

Manufactured to ASME B18.2.1 specifications with Class 2A thread fit tolerance for consistent engagement. Features 1 1/2"-6 UNC coarse threads with 3 1/4" minimum thread length on a 3 1/2" overall length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Material certification confirms 316 Stainless Steel composition with Rockwell B70 hardness and 70,000 psi tensile strength ratings.