S-92800A271 9/16"-18 x 3 1/2" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise thread engagement with Class 2A thread fit and UNF fine thread design ensuring secure, vibration-resistant connections
• Easy installation and removal using standard external hex drive and 13/16" head width for efficient tool access
• Optimized partial threading providing 1-3/8" minimum thread length for controlled clamping force in specific applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing
• Dimensional consistency with inch system measurements ensuring compatibility with existing industrial equipment

Professional Applications & Engineering Value

These 18-8 stainless steel hex head screws deliver critical performance advantages in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The UNF fine thread configuration provides superior vibration resistance compared to coarse threads, making these partially threaded fasteners ideal for precision assemblies requiring controlled clamping force. The external hex drive design allows for high-torque installation in confined spaces, while the Class 2A thread fit ensures consistent engagement without binding. Engineered for machinery, equipment manufacturing, and structural applications, these screws maintain integrity in corrosive environments while meeting strict industrial compliance standards through RoHS 3 and REACH certification.

Specification Summary & Compliance

This 9/16"-18 UNF hex head screw features precise Class 2A thread fit tolerances with 0.5625" thread diameter and 3-1/2" overall length. Manufactured to UNF (Unified National Fine) thread standards with right-hand threading and partial threading design. The fastener demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety in industrial applications.