Why do foundation bolts at corners deteriorate faster?
Corrosion is a process of moisture and oxygen on the steel bolts. There is no special reason for the bolts to “rust” at the corners than any other location, unless 1) proximity to crawl space vents, 2) coincidental subsurface moisture (uphill locations) at those locations, 3) surface moisture (downspouts) introduced at those locations, 4) leaky siding joints at corners, etc.