Description: Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry Made of high quality stainless steel, the stainless steel material provides strength and offers good corrosion resistance in many environments. Different size of M2 M3 M4 screws, nuts, washers, wrenches , there are totally 1083 pieces in a clear box which are commonly used size Easy to use and install High quality ,durable Specification: Material: Stainless steel Overall size: Approx.190×130×35 mm/7.48×5.12×1.38 inch Color: As shown in picture Package Includes: Wrenches: 1 Piece M2 Hex Wrench?1.5mm 1 Piece M3 Hex Wrench?2.5mm 1 Piece M4 Hex Wrench?3.0mm Screws: 20 Pieces M2 * 5/32" 20 Pieces M2 * 1/4" 20 Pieces M2 * 5/16" 20 Pieces M2 * 29/64" 20 Pieces M2 * 5/8" 20 Pieces M2 * 25/32" 20 Pieces M3 * 5/32" 20 Pieces M3 * 5/16" 20 Pieces M3 * 29/64" 20 Pieces M3 * 5/8" 20 Pieces M3 * 25/32" 20 Pieces M3 * 19/16" 20 Pieces M4 * 1/4" 20 Pieces M4 * 3/8" 20 Pieces M4 * 9/16" 20 Pieces M4 * 23/32" 20 Pieces M4 * 25/32" 20 Pieces M4 * 19/16" Nuts: 120 Pieces M2 120 Pieces M3 120 Pieces M4 Washers: 120 Pieces M2 120 Pieces M3 120 Pieces M3