S-92800A284 5/8"-18 x 3 3/4" 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 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 through Class 2A UNF fine threads ensuring secure, vibration-resistant connections
• Optimized load distribution with partially threaded design and 1 1/2" 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 in regulated industries
• Dimensional consistency with 3 3/4" length and fine thread spacing for precise assembly requirements

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/8"-18 UNF hex head screws provide critical solutions where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition delivers excellent protection against rust and chemical degradation in marine, chemical processing, and food manufacturing environments. The UNF fine thread configuration offers superior vibration resistance compared to coarse threads, making these partially threaded screws ideal for machinery, structural frameworks, and equipment requiring precise clamping force. The external hex drive design ensures reliable torque transmission during installation, while the Class 2A thread fit guarantees consistent performance in high-stress applications where fastener failure is not an option.

Specification Summary & Compliance

This hex head screw features precision Class 2A thread tolerances per UNF standards with 5/8"-18 thread size and fine thread spacing. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance compliance. Critical dimensions include 3 3/4" length, 15/16" head width, and 1 1/2" minimum thread length, maintaining consistent performance across industrial applications where dimensional accuracy and regulatory adherence are essential.