In past earthquakes that occurred in Türkiye, particularly in the Mw=7.7 and Mw=7.6 earthquakes that struck Kahramanmaraş-Pazarcık and Elbistan on February 6, 2023, structural connection failures were observed in precast reinforced concrete industrial buildings utilizing MFB1-type hinged dowel connections. These failures were attributed to the out-of-plane behavior of the connections. In this study, which investigates the collapse mechanisms and out-of-plane load capacities of such connections, five different scenarios were modeled using the finite element software ABAQUS to evaluate the effects of the hinged dowel connection details specified in the Turkish Building Earthquake Code 2018 (TBEC-2018), as well as common structural deficiencies encountered in practice. The scenarios included common implementation errors typically observed in hinged dowel connections, such as the presence or absence of surface roughness around the dowel hole, the lack of grout filling, absence of elastomeric bearings, and omission of the nut and top plate. For each connection model, nonlinear time-history analyses were conducted using both monotonic loading and non linear time history analysis using real earthquake acceleration-time data. The resulting collapse mechanisms were then compared with those observed after actual seismic events. For all models, parameters such as collapse mechanisms, lateral load capacities, displacements, stress and strain distributions in the dowel and surrounding grout, as well as the development of compressive and tensile damage, were evaluated and compared with earthquake-induced damage patterns. The findings indicate that as implementation deficiencies in the construction of hinged dowel connections- contrary to code specifications- increase, the lateral load-carrying capacity of the connection decreases. Among the modeled scenarios, the MFB1-type hinged connection designed in full compliance with TBEC- 2018 demonstrated the highest structural capacity.