Use to replace broken, lost, or stripped nuts, and bolts * Includes: Machine bolts: M4X12MM, M4X20MM, M5X16MM, M5X25MM, M6X20MM * M6X30MM, M8X25MM, M8X40MM, M10X16MM, M10X40MM * Hex Nuts- M4, M5, M6, M8, M10 * Split washers- M4, M5, M6, M8, M10