NINDEJIN hex hexagon socket button head screw nut carbon steel m2 m2.5 m3 m4 m5 m6 allen round head screw set bolt and nut set

Product detail 1.[High quality]: Made from 10.9 grade carbon steel, finish black-oxide, mildly corrosion resistant in dry environments, these screws are nearly twice as strong as stainless steel button head screws. Length is measured from under the head. 2. [Screw set]: each set for each size, 452pcs for m2 screw set, 322pcs for m2.5 screw set, 282pcs for m3 screw set, 362pcs for m4 screw set, 232pcs for m5 screw set, 146pcs for m6 screw set; 3. [Application]: Widely used in 3D printer components, household, industrial machinery, automobiles, construction, smart equipment; 4. [Storage]: These screws stored in a transparent plastic box, convenient for your storage and use, each size screw is packed in a small bag to prevent scattered and lost. Specification Item: Round head screw set Material: 10.9 grade carbon steel Sizes: m2 m2.5 m3 m4 m5 m6 Application: household repairing work, furniture installation, machinery, industrial, architecture, etc. Package list M2 series: M2*3mm--------25pcs M2*4mm--------25pcs M2*5mm--------25pcs M2*6mm--------25pcs M2*8mm--------25pcs M2*10mm------25pcs M2*12mm------25pcs M2*16mm------25pcs M2*20mm------25pcs M2 nuts----------225pcs Hex key 1.5mm--------2pcs Total: 452pcs M2.5 series: M2.5*3mm-------20pcs M2.5*4mm-------20pcs M2.5*5mm-------20pcs M2.5*6mm-------20pcs M2.5*8mm-------20pcs M2.5*10mm-----15pcs M2.5*12mm-----15pcs M2.5*16mm-----15pcs M2.5*20mm-----15pcs M2.5 nuts---------160pcs Hex key 1.5mm-------2pcs Total: 322pcs M3 series: M3*4mm--------20pcs M3*5mm--------20pcs M3*6mm--------20pcs M3*8mm---------20pcs M3*10mm------20pcs M3*12mm------10pcs M3*16mm------10pcs M3*18mm------10pcs M3*20mm------10pcs M3 nuts---------140pcs Hex key 2mm--------2pcs Total: 282pcs M4 series: M4*5mm--------20pcs M4*6mm--------20pcs M4*8mm--------20pcs M4*10mm------20pcs M4*12mm------20pcs M4*14mm------20pcs M4*16mm-------20pcs M4*18mm------20pcs M4*20mm-------20pcs M4 nuts----------180pcs Hex key 2.5mm--------2pcs Total: 362pcs M5 series: M5*6mm--------15pcs M5*8mm--------15pcs M5*10mm------15pcs M5*12mm------15pcs M5*14mm------15pcs M5*16mm------10pcs M5*16mm------10pcs M5*18mm-------10pcs M5*20mm------10pcs M5*25mm-------10pcs M5 nuts----------115pcs Hex key 3mm--------2pcs Total: 232pcs M6 series: M6*8mm--------8pcs M6*10mm-----8pcs M6*12mm------8pcs M6*14mm-----8pcs M6*16mm------8pcs M6*18mm-----8pcs M6*20mm------8pcs M6*25mm-----8pcs M6*30mm------8pcs M6 nuts------72pcs Hex key 4mm--------2pcs Total: 146pcs FAQ 1.Wholesalers, retailers and dropshippers are welcomed. For wholesale, we will offer discount or free express shipping which only takes short time to arrive. If you are a retailer and want make your own business, we could send the goods to your customers directly and won't leave information about us if you'd like to. 2.What should I do if I don't receive my item? Please contact us first, we will track your item. If you can't receive it, we will full refund or resend it for you. We are honest seller, so don't worry. 3.If the products have problems how to do it? Please contact with us in time, we will help you solve it.