Metal surfaces structured by laser radiation in combination with thermoplastic injection moulding processes can be used for manufacturing intrinsic hybrid structures. Therefore, suitable injection moulding process parameters are to be identified to provide optimized hybrid joints. Laser-structures with different orientation were applied to steel sheets and implied to injection moulding producing In-Mould assembled hybrid sheets (steel-PA6). Injection moulding parameters such as melt temperature and flow rate as well as glass fibre content of the injection moulding material were varied. After manufacturing, specimens were extracted and characterized in single-lap tensile shear tests comparing different process parameters and material configurations. It is shown that the joint strength is extremely sensitive to process parameters, varying from no adhesion up to a joint strength of max. 8.8 MPa. Best results were obtained with a glassfibre content of 30 % with high flow rates and melt temperatures.