S-92186A613 5/16"-18 x 9" 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
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity for demanding applications
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Class 2A thread fit guarantees consistent assembly and secure fastening with standard nuts
• Partially threaded design allows for precise clamping force control and reduced thread galling
• External hex drive enables easy installation and removal with common tools, improving maintenance efficiency
• Coarse UNC threading facilitates quick assembly and disassembly in industrial settings

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw in 316 stainless steel is engineered to address critical challenges in industrial fastening, particularly where corrosion resistance and structural integrity are paramount. The partially threaded design minimizes stress concentration and prevents loosening under vibration, making it ideal for machinery, marine equipment, and chemical processing applications. With its coarse thread spacing and external hex drive, it ensures rapid installation in heavy-duty assemblies while maintaining 70,000 psi tensile strength for long-term reliability. The 9-inch length provides ample engagement for thick materials, offering a robust solution for construction, manufacturing, and infrastructure projects where environmental durability is essential.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. Manufactured in compliance with ASME B18.2.1 specifications, it meets rigorous industrial requirements for mechanical properties and threading. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substances. With inch system measurements and coarse thread spacing, it delivers consistent performance in accordance with established engineering standards.