... 4.Competitive price and good quality;5.OEM service available;6.Size:M6*6mm,M8*6mm,M8*8mm,M10*8mm,M10*9 ... .1mm,M12*8mm,M12*9.1mm,M12*11.9mm,1/4",3/8",5/16",1/2" )We ... hope to receive drawings or physical samples from you and we will quote you competitive price ... asap. hot dipped galvanized spring nut(M6,M8,M10,M12,1/4",3/8",1/2")