Taiss 841PCS M3 Screw Kit,Flat Head Metric Bolts Assortment,10.9 Grade Alloy Steel,Countersunk Machine Screws,Black Nuts and Bolts for 3D Printer,Mechanical Hardware,with Hex Wrenches

M3 Screws,Type:Flat Head Hex Socket Cap,Thread is clear and accurate, and it is not easy to loosen and deform.Countersunk screws are stored in a transparent and sturdy storage box with compartments. Easy to carry and use. | M3 Countersunk specifications:Thread Diameter: 3mm;Pitch Size: 0.5mm, Thread Length: 4mm/6mm/8mm/10mm/12mm/16mm/20mm/25mm/30mm;Color: Black. | M3 Machine Screws,bolts and nuts are made of 10.9-grade carbon steel,which has high hardness,high strength,difficult deformation,black oxidation treatment on the surface,corrosion resistance and rust resistance, and long service life. | Widely used: M3 Flat Head Screws Suitable for Furniture, electronic equipment, office equipment, machinery, ships, motorcycles, cars and bicycles, etc. | Product Packaging:Flat Head Screws 40PCS M3x4mm;40PCS M3x6mm;30PCS M3x8mm;30PCS M3x10mm;20PCS M3x12mm;20PCS M3x16mm;10PCS M3x20mm;10PCS M3x25mm;10PCS M3x30mm;M3 Nuts /Flat washer/lock washer 210PCS each;1PCS Hex Wrenches