Features 1、Made of high quality brass, good corrosion resistance and never rust, durable to use. 2、Equipped with a plastic box, you can classify nuts in an organized manner, more convenient to carry and take out. 3、Different sizes of nuts, can meet your different needs. 4、Well fine surface treatment of the knurl nuts, bring no scratches to your hands. 5、Used widely in the machinery industry. Specification Features: Made of high quality brass, good corrosion resistance and never rust, durable to use. Equipped with a plastic box, you can classify nuts in an organized manner, more convenient to carry and take out. Different sizes of nuts, can meet your different needs. Well fine surface treatment of the knurl nuts, bring no scratches to your hands. Used widely in the machinery industry. Specification: Condition: 100% Brand New Material: Brass Screw nuts type: M3 Weight: 143g Content: M3x3mm 30pcs M3x4mm 20pcs M3x5mm 20pcs M3x6mm 20pcs M3x8mm 20pcs M3x10mm 20pcs M3x12mm 20pcs Package Included: 1 x Box of M3 Knurl Insert Nuts(included 150pcs) Package List