Nuts and Bolts

At work there was a container of pretzels, chips, peanuts etc and I heard it being referred to as 'nuts and bolts.' I was surprised, perhaps I had mis-heard because this wasn't a container of screws and fasteners. Perplexed I waited and then I heard it being called again nuts and bolts but it was still the same container of pretzels, chips and peanuts. So I asked and apparently a snack mix can be termed nuts and bolts because it is a combination of different things. And nuts and bolts is a terminology not just for screws and fasteners but also for a snack mix and it could be a variation of different snack mixes.

Interesting...!