Additive manufacturing (AM) has revolutionized manufacturing by offering the capability to create intricate three-dimensional objects in a layer-by-layer fashion, enabling the production of complex parts that were once challenging to manufacture using traditional methods, and hence, has widespread applications across diverse industries. AM also provides unique advantages such as customization, topology optimization, multi-material integration, and the fabrication of complex geometries, making it a transformative force in manufacturing. This research delves into the integration of metal-threaded inserts into AM-fabricated thermoplastic parts, addressing the challenges and opportunities of metal-polymer joints. Threaded inserts play a crucial role in creating robust connections between metal and plastic, leveraging the strengths of each material. The study investigates various insertion techniques and the impact of heat addition during installation. Findings reveal that the addition of heat during insertion significantly enhances joint strength, surpassing the performance of pre-designed threads. Surface texture, including knurling and grooves, is shown to influence holding strength, crucial for the reliability of these connections. The research underscores the importance of threaded inserts in metal-polymer joints, offering insights into their optimal usage in AM applications. Future directions involve exploring the influence of infill density on joint performance and investigating alternative geometric orientations for enhanced interlocking tendencies. These findings contribute to the design and manufacturing of robust metal-polymer joints in AM, enhancing their applicability across industries.