This model is an original design inspired by the locking bolt from a Velux window. It is not an exact reproduction of the original part, and dimensions may differ.

My daughter broke the locking bolt of a Velux window, and I tried to recreate the part in 3D and print it. It worked out okay, but I recommend printing this in PETG. I printed it in PLA, and it feels fragile. I will reprint in PLA with 100% infill to see if it is good enough. The bolt does not experience a lot of force, but it may experience heat on very warm days, it should not experience direct sunlight.