brass insert nut 1.Size,M4-M60 2.Material:brass, copper 3.SGS,ISO Certificate 4.Surface treatment:Plain or ... as request High quality brass insert nut 1. Standard:DIN,ANSI, BSW, JSB ans ISO standard ... treatment: plain7. professional manufactuer, offers better quality and price Productbrass insert nut Materialbrass, copper FinishPlain or as request SizeM4~M60 or ...