3D Printer M4*40 Screw&Nut Leveling Spring Kit For Cr10/Ender-3/Um2/Prusa I3 Heated Bed

Parameters:

 

Screws type: M4*40 
Screws size: 40*4mm

Nuts type: M4 
Nuts size: 25*8mm
Nuts color: yellow
Hotbed spring suitable: Cr10/Ender-3 3D Printer. ect

Package Included:

1 x leveling spring
1 x nut
1 x screw