flange nut 1)Descripition:insert screw with washer 2)Material:steel,stainless steel, 3)Surface:zinc white,blue,yellow flange nut:Item name: high quality flange nutdesign prevents burnouts and eliminates the need for indexing and retapping to remove weld spatter.Thread sizes #4 to 1/4"size: M6-M24Material: stainless steel,iron,copper,carbon steelFinish: black nickel,white zinc,bule zinc,color zinc ...