Catalog > Internet of Things (IOT) Related Products > More Platforms 3D Printer Bed Leveling Spring Set 3D Printer Bed Leveling Spring Set HKD SCREW LEVELLING SPRING 4 SET 3D Printer Bed Leveling Spring Set of 4. M3 Screw 42.62 ZAR inc for 1 Each 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features 3D Printer Bed Leveling M3 Screw with SPRING and Hand KnobThese M3 Springloaded nut and bolt kit makes leveling a 3D Printer bed much easier.