S-92800A212 5/16"-18 x 6 1/2" 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 and outdoor applications.
• High mechanical strength and durability from 80,000 psi tensile strength and Rockwell B70 hardness, ensuring reliable performance under heavy loads.
• Easy and secure installation with an external hex drive and standard 1/2" head width, compatible with common wrenches for efficient assembly.
• Optimized thread engagement through coarse UNC threading and Class 2A fit, reducing cross-threading risks and providing consistent clamping force.
• Versatile partial threading design on a 6 1/2" length, allowing for precise adjustment and secure fastening in a wide range of material thicknesses.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for regulated industries.
• Right-hand thread direction for standard, intuitive tightening, streamlining assembly processes in manufacturing and maintenance.

Professional Applications & Engineering Value

This 18-8 stainless steel hex head screw is engineered to address critical challenges in demanding industrial settings. Its high tensile strength (80,000 psi) and corrosion-resistant properties make it a reliable choice for structural assemblies, machinery, and marine applications where failure is not an option. The coarse UNC thread and Class 2A thread fit ensure rapid installation and vibration resistance, reducing assembly time and maintenance needs. The partially threaded shank on this 6 1/2" length fastener provides a non-threaded grip area, offering superior shear strength and preventing loosening in dynamic loads. Ideal for construction, automotive, and heavy equipment, this screw delivers long-term durability and performance where mechanical strength and environmental compliance are paramount.

Specification Summary & Compliance

This screw adheres to Unified Coarse (UNC) thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. It is manufactured from 18-8 Stainless Steel and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industries.