M3 Heated Bed Spring Leveling Kit + Screws & Nuts For 3D Printer Parts Set 4pcs

4pcs/set M3*20 Screw Nuts Heated Bed Spring Knob Leveling Kits For 3D Printer Feature: 1. M3 screw Leveling spring knob 2. DIY Leveling Modules 3. 3D Printer Accessories 4. M3 Screw Heatbed Kit 5. M3 Nut Diameter: 44mm 6. Screw Size: 3*20mm Package Included: 4* Adjustment Nut+4*Springs+4*M4 Screw

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