Features Premium Brass Material: Crafted from high-quality brass for excellent corrosion resistance and durability, ensuring long-lasting performance in various applications Organized Storage Solution: Comes with a convenient plastic box for easy classification and transport of 150 assorted nuts, making your projects more efficient and hassle-free Versatile Size Variety: Includes multiple sizes of nuts to accommodate diverse fastening needs, providing flexibility for various projects and reducing the need for extra purchases Smooth, Scratch-Free Finish: Features finely treated knurl nuts that prevent scratches or damage to your hands, enhancing safety and comfort during use Ideal for Machinery Applications: Perfectly suited for use in the machinery industry, these threaded inserts ensure reliable fastening in mechanical and industrial settings Features: 1、Made of brass, good resistance and never , 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 treatment of the knurl nuts, bring no scratches to your hands. 5、Used widely in the machinery industry. Specification: Features: Made of brass, good resistance and never , 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 treatment of the knurl nuts, bring no scratches to your hands. Used widely in the machinery industry. Specification: Condition: 100% Material: Brass Screw nuts type: M3 Weight: 143g Content: M3xm 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