... stamping part/channel nutchannel nut(M6,M8,M10,M12,1/2",1/4",5/16",3/8"): 1.Material:carbon steel;2.Surface treament ... ,M8*8mm,M10*8mm,M10*9.1mm,M12*8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2 ... you competitive price asap. hot dipped galvanized spring nut(M6,M8,M10,M12,1/4",3/8 ...