... BS,UNI,AS,etc and non-standard nuts;3.size range:Mm3-Mm36;4.we manufacture non-standard nuts according to ... customers'drawings or samples;5.grade:4.8,6.8,false 8.0 ,true 8.0,8.8 and etc ... ;6.material:carbon steel(incude A3#,34#,45#,etc,),brass;stainless steel;7 ... blue zinc plating,environmental galvanizing,hot-dig-galvanizing,etc;8.manufacture method:be made by cold-forming ...