S-92800A348 1 1/4"-7 x 8 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
• Exceptional tensile strength of 80,000 psi ensures reliable performance under heavy loads
• Coarse UNC threading provides faster installation and better resistance to vibration loosening
• Class 2A thread fit guarantees consistent, precise engagement for smooth assembly operations
• External hex drive design allows for high-torque application with standard tools
• Partial threading offers optimal grip length while reducing material usage and weight
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition combined with Rockwell B70 hardness provides exceptional durability against environmental degradation and mechanical stress. The 1 1/4"-7 UNC coarse thread configuration ensures rapid installation in structural steel, heavy machinery, and construction applications where vibration resistance is crucial. With partial threading optimizing clamp load distribution, this fastener solves common challenges of joint relaxation while maintaining 80,000 psi tensile strength for the most demanding industrial fastening requirements.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit per UNC standards with 1 1/4"-7 coarse threading and right-hand thread direction. The 8 1/2" length includes 3" minimum thread length in partially threaded configuration. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for industrial applications worldwide.