Keep your screws, nuts and washes in check with this 6” Wurktol Stainless Steel Magnetic Tray. Just stick to a metal surface (typically around the engine bay or tool box), and toss the screws from the item you are disassembling in the tray to keep them magnetized and not going anywhere. Sized perfectly for bigger jobs, this can be stored in any small profile toolbox drawer.
Wurktol also offers a 3" size: