Square Steel Key for Shaft and Pulley Coupling SKU: QT2685

When shaft keys wear down, snap, or go missing, you lose the mechanical connection between shafts and pulleys that keeps equipment running. This precision-cut steel key restores the positive lock between rotating components, preventing slipping that causes poor performance and component damage.

Key Benefits

• Exact 5mm x 5mm square dimensions ensure proper fit in keyways
• High-strength steel construction resists shearing under torque loads
• Precision-machined edges provide secure engagement with no play
• Universal design works across multiple equipment applications

Whether you're rebuilding a hydraulic pump, replacing a worn PTO coupling, or maintaining gear systems that transfer power throughout your equipment, this steel key provides the reliable mechanical connection your machinery demands. S&H Parts stocks the precise sizes that keep your equipment running right.