D-shaped hole HTD 3M timing pulley 15T 16T 18T 20T 22T 24T 25T 26T 28Teeth D-hole 5x4.5mm-15x14mm Slot Width 11/16mmHome Improvement > Hardware4,87 USD (≈ 4,36 €)10,58 USDDisponibileSold by AliExpress WWVai al negozio