Feature:1. Made of high quality stainless steel material, durable and long service life2. Including 260pcs flat screws, easy to replace3. There are different kinds of screw type, which can meet different needs4. There is a transparent plastic box which is convenient to carry and store5. Suitable for electronics industry fastenersSpecification:Item Type: Flat ScrewStandard Type: German standardModel: Flat head hex socketSurface Treatment: Without treatmentMaterial Grade: Stainless steel A2-70Thread Specification: M4, M5, M6Thread Tolerance: 5gApplications: Fasteners for the electronics industry.Package List:40 x M4x8 Screw 40 x M4x10 Screw30 x M4x12 Screw20 x M4x16 Screw20 x M4x20 Screw20 x M5x10 Screw15 x M5x12 Screw15 x M5x16 Screw10 x M5x20 Screw10 x M5x25 Screw10 x M6x12 Screw10 x M6x16 Screw20 x M6x25 Screw