Name:500Pcs/Set Insert Embedment Nuts Injection Molding Nut Brass Insert Knurled Nuts Knurling Tool Embedded Parts Fastener Made of high quality brass, it is of high hardness and good durability. No deformation under great pressure. Resistant to wear, oxidation and corrosion, long service life.Knurled surface makes nuts embed installed object tightly and stably.High precision threads is compatible with corresponding screws.All nuts is sorted and packed in a plastic case, convenient to carry and use. Quantity:500 pcs Item Type: Threaded insert DIY Supplies: Woodworking color: Gold Material: Brass size: 12.5x6.5x2.2 cm Package Contents: 50xM2x3mm Nut 50xM2x4mm Nut 50xM2x5mm Nut 50xM2x6 mm Nut 50xM2.5x3mm Nut 50xM2.5x4mm Nut 50xM2.5x5mm Nut 50xM2.5x6mm Nut 50xM3x4mm Nut 50xM3x5mm Nut 1xPlastic Box Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.