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 1Made of high quality brass, high hardness and good durability. 2No deformation under great pressure. 3Resistant to wear, oxidation and corrosion, long service life. 4Knurled surface makes nuts embed installed object tightly and stably. 5High precision threads is compatible with corresponding screws.