... see this sheet as follows: Main products:Nonstandard fasteners(nut,screw,bolt) and precision turning partsMaterial Available:Stainless steel:SUS303,SUS304 ... 20mmCNC lathe machine:From diameter1.0 to 100mmScrew thread:M1-M39, nonstandard thread,inch thread etc.Finish:polishing, passivating,Ni-Plated,Zn-plated ...