From the looks of it.

Hardware can be tricky to inspect, some have cotter pins others are torqued, some are easily visible others are deep inside some crevice. However all serve a purpose and if some fail in flight it can have devastating consequences.

Below is a picture of a bolt that was discovered to be excessively corroded, but by the looks from the head did not show any signs of wear or corrosion. A good tug on the part revealed its weakness.