S-92800A287 5/8"-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
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Precise thread engagement with Class 2A UNF fine threads ensuring secure fastening and vibration resistance
• Optimized load distribution through partially threaded design with 1-3/4" minimum thread length for enhanced structural integrity
• Easy installation and removal with standard external hex drive and 15/16" head width for common tool compatibility
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across various industries
• Dimensional consistency with inch system measurements providing reliable interchangeability in maintenance and assembly

Professional Applications & Engineering Value

This 5/8"-18 UNF hex head screw delivers critical engineering solutions where corrosion resistance and high tensile strength are paramount. The 18-8 Stainless Steel composition prevents rust and degradation in marine, chemical processing, and food industry applications, while the fine UNF thread configuration maintains secure connections in high-vibration environments. The partially threaded design concentrates strength where needed most, preventing thread damage during installation and providing superior clamping force. With its external hex drive and substantial 6-1/2" length, this fastener is engineered for heavy machinery assembly, structural steel connections, and industrial equipment maintenance where reliability cannot be compromised.

Specification Summary & Compliance

This hex head screw features Class 2A thread fit tolerance per UNF standards, ensuring precise dimensional accuracy and interchangeability. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material transparency. Thread specifications include 5/8"-18 UNF right-hand fine threads with 0.625" diameter, while mechanical properties are verified at Rockwell B70 hardness and 80,000 psi tensile strength. The inch system measurements provide consistency for North American industrial applications requiring standardized fastener solutions.