S-92198A897 7/8"-9 x 6 1/2" 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
• High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and vibration
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Coarse UNC threading allows for faster installation and better performance in softer materials
• Class 2A thread fit ensures consistent, reliable engagement while maintaining easy assembly
• Partial threading design offers optimal grip length control for precise clamping applications
• External hex drive enables high-torque installation with standard tools for efficient maintenance

Professional Applications & Engineering Value

This 7/8"-9 UNC hex head screw delivers exceptional engineering value for demanding industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making it ideal for marine environments, food processing equipment, and outdoor structures. The coarse thread pattern ensures superior performance in softer materials and allows for quicker installation in high-volume assembly operations. With partial threading and precise Class 2A thread fit, this fastener provides controlled clamping force distribution, preventing joint loosening under dynamic loads. The external hex drive accommodates standard wrenching tools, facilitating efficient maintenance and disassembly in confined spaces while maintaining the screw's structural integrity through multiple service cycles.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 7/8"-9 UNC coarse threading and meets ASME B18.2.1 manufacturing specifications. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. With a total length of 6 1/2" and minimum thread length of 2 1/4", it maintains dimensional accuracy per inch system requirements for reliable performance in critical fastening applications.