LSU, no law says you have to save the stuff, not perfect either, some things can go in coffee cans, screw in hooks etc, too many sizes to make it practical to file, not enough use, no big deal to sort thru a coffee can but 3/8 nuts a different matter especially when bought in bulk.
Had an occasion a while back to score something we had sorted during clean up, all the misc trailer hdw we ran across went in bucket,put in to storage. It was great to find it, rare event I need it, didn't sort every piece when I stored it, just tossed all similar in a bucket, haven't been back since, its only worth a certain level of effort. Is worth the effort to keep rack in work area with 3/8 NC nuts, use hundreds a year.
Had a deal during a reman the other day, needed 50 7/16 2 1/2 carriage bolts, had a few for service work but just had someone pick them up, buy a few extra in sized we do use, bought a handful specific to a future event, not going to stock many more than that.
My neighbor was cleaning garage, brought me a bunch of hardware, after a few minutes I was playing game as to how far I could file it down, I dumped the wood dust and the boxes in the stove for heat but had files a few cable staples and flat washers. Out of half a dozen big boxex was only a handful of exotic stuff I really didnt have imidate use for or didnt stock.
Sheet metal screws, self drilliers, power drive fasteners are a modern wonder, would be lost without them. I remember the effort when I was a kid. wood work was terible, same old screw with slot, ha Now days dont even save them, if we run across the nead it gets replaced with modern power drive version.
Have a space for deck screws too, way back we used a few drywall but today never, coated deck.
As I recall that strip was an electric fixture, just tacket some little scraps in, spray white screw to bench for common sizes that we lean on.