pic: The face of Taranis

[Navid Shafa]

The klikos seen in this picture are near the bottom of the lexan ears. They are used as a placeholder to keep something where you want it before pop-riveting. In this case, it's likely someone drilled those holes, expanded the kliko, put it in and let it fit into place. This way the part can't move away from the hole locations.

(The kliko is that cylindrical looking copper-ish thing, and there are 2 of them)