Screw guide is provided and includes a cylindrical member having a first end adapted to rotate a fastener and a second end adapted to receive torque from an external source and transfer the torque to the fastener, a stop ring engaged with the cylindrical member that is adjustable to control the movement of the fastener with respect to the screw guide. The screw guide may also include a sleeve that surrounds the cylindrical member and the stop ring and a stand off ring that is engaged with the cylindrical member. |