17404072 1740 4-Panel Hardware Set, 72" 6/0 [1829mm] Track
72" 6/0 [1829mm] Track Length18" 1/6 [457mm] x 4 Nominal Max Width Per Panel1" [25mm] to 1-3/8" [35mm] Panel Thickness15lbs [7kg] Max Weight Per PanelResidential Grade Top Hung, Top Mount Multi-Fold Door HardwareAll Panels Fold in Single Direction1740RD Installation Instructions Manufacturer part number: 17404072