1/5PCS M4 M5 M6 M8 M10 M12 Knob Star Clamping Screw Nut Stainless Steel Thumb Bolt for 3D Printer Camera Tripod Coffee GrinderHome Improvement > Hardware17,17 USD (≈ 15,37 €)57,22 USDDisponibileSold by AliExpress WWVai al negozio