300 pieces screw and parts box set.

Half round head: 30pcs M3*6, 30pcs M3*8, 30pcs M3*10, 30pcs M3*12
Countersunk: 30pcs M3*6, 30pcs M3*8, 30pcs M3*10, 30pcs M3*12
Flat Gasket: 30pcs M3, 30pcs M4