[oceanscapt]

Good question.

I organize them by type (machine, wood, nut) and make (SS, brass, nylon). I put them in small zip lock bags and then store them in plastic trays with covers (and rubber bands over the covers to prevent spillage). I label the plastic box and top with a generic code such as SS-M-#4-#10 which I decode as stainless, machine, #4 to #10 screws, nuts, and washers (if applicable). The boxes sit low in the boat as they tend to get a bit heavy.

I also carry threaded rod (which you didn't ask about) for those "custom" jobs. Those I spray with WD-40 and wrap in plastic then paper. I write the info on a piece of tape and attach it to the package.

I have a fairly detailed inventory of what's on board, and try to keep it current.

Hope that helps.