A glenoid assembly comprises a base component having a humeral-facing side and a scapula-facing side. The base component defines a bearing surface defined on the humeral-facing side. A first peg extends from the scapula-facing side of the base component, and a second peg extends from the scapula-facing side of the base component. The first peg and the second peg are positioned in non-parallel orientation with respect to each other. The first peg defines a first shaft diameter equal to FD and a first shaft length equal to FL, and the second peg defines a second shaft diameter equal to SD and a second shaft length equal to SL, in which 0.14 <； FD/FL <； 0.24, and 0.14 <； SD/SL <； 0.24.
