ITEM NAME:500Pcs/set M2/M3 Brass Threaded Round Insert Embedded Nuts tool Kit Newest Use Descriptio n Description: Made of high quality brass with high hardness and good durability Will not deform under high pressure Wear-resistant, anti-oxidation, anti-corrosion, long service life The knurled surface makes the nut tight and stably embedded in the installation object High precision thread is perfectly compatible with the corresponding screw All nuts are classified and packed in plastic box for easy storage and carrying Specifications: Material: Brass Color: Gold Size: 12.5 * 6.5 * 2.2cm Each pack include: 50Pcs M2x3mm Nuts 50Pcs M2x4mm Nuts 50Pcs M2x5mm Nuts 50Pcs M2x6mm Nuts 50Pcs M2.5x3mm Nuts 50Pcs M2.5x4mm Nuts 50Pcs M2.5x5mm Nuts 50Pcs M2.5x6mm Nuts 50Pcs M3x4mm Nuts 50Pcs M3x5mm Nuts Package Included: 500 x M2/M3 Brass Knurled Threaded Round Insert Embedded Nuts 1 x Plastic Box Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Whatever the ending's perfect or not, you can't disappear from my world 500Pcs/set M2/M3 Brass Threaded Round Insert Embedded Nuts tool Kit Newest Use.Will not deform under high pressure. 50Pcs M2.5x3mm Nuts. 50Pcs M2.5x4mm Nuts. 50Pcs M2.5x5mm Nuts. 50Pcs M2.5x6mm Nuts. The knurled surface makes the nut tight and stably embedded in the installation object.