Features Screw surface with thread, precise workmanship, which can effectively prevent the screw from loosening. With four different specifications of screws M3 M4 M5 M6, can meet the daily use needs. Made of high-hardness stainless steel material, providing high strength and good corrosion resistance. With a transparent storage box, it is convenient to sort and store according to size / type. There are enough stress bearing surfaces for easy tightening and easy to use. Specification:Condition: 100% Brand New Item Type: Screws Kit Material: Stainless SteelStandard NumberOtherModelLarge Flat Head Self-TappingSurface TreatmentWithout TreatmentMaterial GradeStainless Steel A2-70Thread SpecificationM2Thread Tolerance 5g Package List:20 x M3x6 Screws20 x M3x10 Screws20 x M3x12 Screws20 x M3x16 Screws20 x M3x20 Screws10 x M4x12 Screws10 x M4x16 Screws10 x M4x20 Screws10 x M5x12 Screws10 x M5x16 Screws10 x M5x20 Screws10 x M6x20 Screws10 x M6x30 Screws Package List 20 x M3x6 Screws 20 x M3x10 Screws 20 x M3x12 Screws 20 x M3x16 Screws 20 x M3x20 Screws 10 x M4x12 Screws 10 x M4x16 Screws 10 x M4x20 Screws 10 x M5x12 Screws 10 x M5x16 Screws 10 x M5x20 Screws 10 x M6x20 Screws 10 x M6x30 Screws