brass forging precision knurled brass nuts 1.material:Brass 2.finish:polishing, passivating,Ni-Plated, ... Zn-plated etc brass forging precision knurled brass nutsSpecificationsknurled nuts 1. smooth surface 2.precise dimension and torlerance 3. ... 20mmCNC lathe machine:From diameter1.0 to 100mmScrew thread:M1-M39, nonstandard thread,inch thread etc.Finish:polishing, passivating,Ni-Plated,Zn-plated ...