Manufacturing Process:Rolled Thread Material:Gcr15 Length:According to customers requirement Certification:ISO9001:2008 and BV Accuracy Grade:C7 Screw lead:5mm Ball Nut material:Bearing steel Gcr15 Screw material:Bearing steel Gcr15 Max diameter:63mm Min diameter:12mm Ball Screw Nut:single or double nuts CNC machine part:ball screw Bearing:Ball screw