A system comprising: an augmentation pin (401,402), an augmentation screw, comprising an axial bore for receiving an augmentation pin (401, 402), wherein the axial bore includes a first step between a first section with a first diameter and a second section with a second diameter, a second step between the second section and a third section with a third diameter, wherein the third diameter is greater than the second diameter which in turn is greater than the first diameter, a first lateral bore located adjacent the first step and in the second section, and a second lateral bore located adjacent the second step and in the third section, so that, when the augmentation pin (401, 402) is inserted into the axial bore of the augmentation screw, the augmentation pin rests on the first step or the second step, depending on the diameter of the augmentation pin (401, 402), a pin-inserter for inserting the augmentation pin (401, 402) into the augmentation screw, the pin inserter comprising an elongated housing with an axial through-bore and a lateral opening, wherein the axial through-bore and the lateral opening are connected to each other, and an elongated pusher which is movably and at least partially accommodated in the axial through-bore, so that, when the augmentation pin (401, 402) is placed in the lateral opening and is aligned with the axial through-bore, then the augmentation pin can be moved by means of the pusher through at least a portion of the axial through-bore, out of the housing and into the augmentation screw, and a pin-magazine with a pin-retainer (201, 202) for the augmentation pin (401, 402), wherein the pin-magazine is placeable in the lateral opening of the housing of the pin-inserter and is adapted to align the pin-retainer (201, 202) with the axial through-bore of the housing, for inserting the augmentation pin into the augmentation screw, when the augmentation pin is located in the pin-retainer. an augmentation pin (401,402), an augmentation screw, comprising an axial bore for receiving an augmentation pin (401, 402), wherein the axial bore includes a first step between a first section with a first diameter and a second section with a second diameter, a second step between the second section and a third section with a third diameter, wherein the third diameter is greater than the second diameter which in turn is greater than the first diameter, a first lateral bore located adjacent the first step and in the second section, and a second lateral bore located adjacent the second step and in the third section, so that, when the augmentation pin (401, 402) is inserted into the axial bore of the augmentation screw, the augmentation pin rests on the first step or the second step, depending on the diameter of the augmentation pin (401, 402), a pin-inserter for inserting the augmentation pin (401, 402) into the augmentation screw, the pin inserter comprising an elongated housing with an axial through-bore and a lateral opening, wherein the axial through-bore and the lateral opening are connected to each other, and an elongated pusher which is movably and at least partially accommodated in the axial through-bore, so that, when the augmentation pin (401, 402) is placed in the lateral opening and is aligned with the axial through-bore, then the augmentation pin can be moved by means of the pusher through at least a portion of the axial through-bore, out of the housing and into the augmentation screw, and a pin-magazine with a pin-retainer (201, 202) for the augmentation pin (401, 402), wherein the pin-magazine is placeable in the lateral opening of the housing of the pin-inserter and is adapted to align the pin-retainer (201, 202) with the axial through-bore of the housing, for inserting the augmentation pin into the augmentation screw, when the augmentation pin is located in the pin-retainer.