Features:_x000D_ _x000D_ Made of high quality brass, high hardness and good durability. _x000D_ No deformation under great pressure. _x000D_ Resistant to wear, oxidation and corrosion, long service life. _x000D_ Knurled surface makes nuts embed installed object tightly and stably. _x000D_ High precision threads is compatible with corresponding screws. _x000D_ _x000D_ Specification:_x000D_ Material: Brass_x000D_ Weight: Approx. 30-80g/1.1-2.8oz_x000D_ Size (Inner Dia. * Length * Outer Dia.) & Quantity: (Optional)_x000D_ M3*5*5.3 50pcs_x000D_ M3*6*5.3 50pcs_x000D_ M3*7*5.3 50pcs_x000D_ M3*8*5.3 50pcs_x000D_ M3*10*5.3 50pcs_x000D_ M3*12*5.3 50pcs_x000D_ M3*14*5.3 20pcs_x000D_ M3*16*5.3 20pcs_x000D_ M3*18*5.3 20pcs_x000D_ M3*20*5.3 20pcs_x000D_ _x000D_ Package List:_x000D_ 1 * Pack of Blind Hole Knurled Nuts