PB round head flat tail self-tapping screws M3*4 - M3*20

Self-tapping screw: Suitable for plastic materials, etc.
M3*4[100pcs], 3*5[100pcs], 3*6[100pcs], 3*8[100pcs], 3*10[100pcs], 3*12[100pcs], 3*14[100pcs], 3*16[100pcs], 3*18[100pcs], 3*20[100pcs]