This study investigates the residual mechanical behavior of post-installed metal (PIM) anchors in concrete after fire exposure. PIM anchors can act as thermal bridges during fire, raising temperatures around the anchorage zone and accelerating concrete degradation. Concrete slabs with PIM anchors were heated for 30 or 60 minutes and it cooled and then tested in pull-out. Pull-out test results revealed that mandrel-driven anchors experienced notable reductions in initial stiffness and maximum pull-out strength, especially when edge distances were small. In contrast, expanded-bottom anchors showed minimal performance loss. Failure observations indicated edge cracking or cone-type failures depending on edge distance. Overall, longer heating durations intensified thermal deterioration of concrete around the anchors, significantly impairing the performance of mandrel-driven systems. These results highlight the critical role of concrete degradation in post-fire anchor behavior.