1.Material: aluminium 2.Cold forming; 3.Sizes: all sizes 4.High quality and the competive price 5.We offer OEM service. StandardGB,ISO.DIN.JIS,ANSI,BS,UNI,AS,etc and non-standard nuts;size rangeMm3-Mm24grade4.8,6.8,false 8.0 ,true 8.0,8.8 and etc;materialcarbon steel(incude A3#,34#,45#,etc,),brass;surface finishedplain;yellow, white and black zinc plated;environmental galvanization;HDP; ...