I bought a house with large raised deck, and the home inspector told me that I need to replace all of the screws with no shear screws, and that since they used screws originally, I cannot use nails now. I've found no-shear screws that look like they were intended for the braces used on the deck. These screws appear to be just slightly thicker, which seems good to ensure a tight fit, but they are not as long as the screws currently in the deck. Will this cause issues or instability? Do I need to use no-shear screws that are both wider and as long or longer than the screws currently in the deck?
Finally, is there any chance that they used appropriate screws originally (pictures included)? How could I determine this?
**Update I've added another image showing where these are located. They are the only connectors for the horizontal supports directly under the deck surface and run from the house to a set of posts on the other side of the deck. The connector on the other side rests on the posts and these are attached to that piece. Thanks for all the comments and suggestions so far!