... : 1)Descripition:nut 2)Material:steel,stainless steel, 3)Surface:zinc(white,blue,yellow,black) 4)Size:M2 to M24 weld ... steel,iron,copper,carbon steel Finish: black nickel,white zinc,bule zinc,color zinc,black zinc,chrome Standard: JIS,BS,GB,ISO,DIN,AISI brand ...