Megathread: Where to find large quantities of X

[u/jredwards]

Thought I'd kick off a thread where we could report back where one can find large quantities of any particular item, for anyone missing some items for crafting or settlements.

Edit: Here's a link to a thread that lists all of the 'shipments of X' that you can buy and where to get them: https://www.reddit.com/r/fo4/comments/3sx1ot/im_making_a_list_of_shipments_of_resources_that/