3d Marking Mechine Accesories Reprap Kosselkossel a Full of Screw M3 12.9 Level High Strength Package:M2.5x12mm 6 M2.5x16mm 3 M3x6mm 50 M3x8mm 100 M3x16mm 13 M3x20mm 6 M3x25mm 15 M3x35mm 6 M5x20mm 1 M3 Nut 150 M3 self-locking nut 50 M5 self-locking nut 1 M3 gasket 60 M3 spring washer 12 M5 gasket 1 M3 Nut 150 M3 self-locking nut 50 M5 self-locking nut 1 M3 gasket 60 M3 spring washer 12 M5 gasket 1 A full set of screws M3 High strength