weld nut: 1)Descripition:nut 2)Material:steel,stainless steel, 3)Surface:zinc(white,blue,yellow,black) 4)Size:M2 ... .Thread sizes #4 to 1/4"size: M6-M24Material: stainless steel,iron,copper,carbon steelFinish: black nickel,white zinc,bule zinc,color ...