Feature: 1. Made of high quality stainless steel material, durable and long service life 2. Including 260pcs flat screws, easy to replace 3. There are different kinds of screw type, which can meet different needs 4. There is a transparent plastic box which is convenient to carry and store 5. Suitable for electronics industry fasteners Specification: Item Type: Flat Screw Standard Type: German standard Model: Flat head hex socket Surface Treatment: Without treatment Material Grade: Stainless steel A2-70 Thread Specification: M4, M5, M6 Thread Tolerance: 5g Applications: Fasteners for the electronics industry Package List: 40 x M4x8 Screw 40 x M4x10 Screw 30 x M4x12 Screw 20 x M4x16 Screw 20 x M4x20 Screw 20 x M5x10 Screw 15 x M5x12 Screw 15 x M5x16 Screw 10 x M5x20 Screw 10 x M5x25 Screw 10 x M6x12 Screw 10 x M6x16 Screw 20 x M6x25 Screw