Description: This kit is For 3D Printer Hot Bed / Platform. Material: Screw - 304 Stainless Steel Spring - 304 Stainless Steel Knob - High quality Coppor . Screw size: M3*40mm Spring size: 1.2*7.5*21.5*8mm (Wire diameter: 1.2 mm / Outside diameter: 7.5mm /Inner diameter: 5.2mm / Height: 21.5mm / Laps: 8 laps) Knob size: As picture show. 1Set = 1Pcs Screw + Spring + Knob. Specification: Material:Brass Package Includes: 1x 304 Stainless Steel M3*40mm Screw 1 x 304 Stainless Steel 1.2*7.5*21.5*8mm Spring 1 x High quality Coppor Knob
