1Pc 45# Steel Trapezoidal Lead Screw Round Nut Tr12 Tr16 Tr20 Tr24 Tr25 Tr28 Tr30 Tr32 for CNC Machine Tools Linear Motion Home Improvement > Hardware3,40 USD (≈ 3,04 €)4,10 USDDisponibileSold by AliExpress WWVai al negozio