Timber-to-timber connections play an important role in the robustness of timber structures. Their performance and structural integrity primarily depend on the effective transfer of loads between elements, typically achieved through metal fasteners, such as nails, screws, bolts or dowels. During their design life, these connections may be subjected to dynamic loads, such as during earthquake and progressive collapse events, and the response of the fasteners under such loads is under researched. In this study, the pull-out and pull-through withdrawal resistance of 7 mm in diameter self-tapping timber screws, driven into Glue Laminated Timber (Glulam) samples, was experimentally evaluated under four strain rates, with failure occurring between 200 s (quasi-static) and 0.2 s (corresponding to seismic and progressive collapse events). The withdrawal pull-out strength increased by 23.0% when the screws were inserted along the parallel-to-grain direction and 18.9% when inserted perpendicular-to-grain. The pull-through resistance showedalower strain rate sensitivity with an increase of 17.2%.