GRADE 100 MASTER LINK 26 000 LB. Master Links are designed to go with the Kuplex Kupler or the Kuploks and act as a connection device to construct one or two Branch/leg alloy chain slingsThese Kuplex master links are forged, heat treated Chain Size: 1/2 in, 5/8 in, 3/8 in [Min]Material Diam: 1 inInner Length: 7 inInner Width: 3 1/2 inWorking Load Limit: 15000 lbGrade: 100Material: Alloy SteelFinish: RedType: K-3Wt.: 4.70 lb