1.Hexagon Weld Nuts 2.Mm16-M20 3.plain , zinc or orthers 4.carbon steel; 1.all kinds of standard nuts such as GB,ISO.DIN.JIS,ANSI,BS,UNI,AS,etc and non-standard nuts;2.size range:Mm6-Mm20;3.we manufacture non-standard nuts according to customers'drawings or samples;4.grade:4.8,6.8,false 8.0 ,true 8.0,8.8 and etc;5.material:carbon steel(incude A3#,34#,45#,etc,),6.finished:plain,yellow zinc plated; ...