S-92186A812 5/8"-11 x 4 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 for extended service life in harsh environments
• High-strength performance with 70,000 psi tensile strength to withstand heavy loads and stress
• Reliable thread engagement through UNC coarse threading and Class 2A fit for secure fastening in industrial applications
• Optimized drive efficiency with external hex head design providing maximum torque transfer during installation
• Enhanced durability with Rockwell B70 hardness maintaining structural integrity under repeated use
• Versatile partial threading allowing for both clamping and alignment functions in complex assemblies
• Regulatory compliance assurance meeting ASME B18.2.1 specifications for quality and performance standards

Professional Applications & Engineering Value

This 5/8"-11 UNC hex head screw in 316 stainless steel addresses critical engineering challenges in demanding industrial environments. The combination of coarse threading and partial threading provides optimal performance in applications requiring both strong clamping force and alignment capabilities, such as structural steel connections, heavy machinery assembly, and marine equipment. The external hex drive design ensures maximum torque application without stripping, while the 4 1/2" length offers sufficient engagement for thick materials. The 316 stainless steel composition delivers exceptional resistance to corrosion from chemicals, saltwater, and industrial atmospheres, making these heavy-duty hex screws ideal for offshore platforms, chemical processing plants, and food processing equipment where durability and compliance with industry standards are paramount.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 5/8"-11 UNC coarse threads in right-hand direction, ensuring proper engagement and alignment. Manufacturing complies with ASME B18.2.1 specifications for dimensional accuracy and performance requirements. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial fasteners. With Rockwell B70 hardness and 70,000 psi tensile strength, this fastener delivers reliable mechanical performance across various demanding applications.