High quality brass nut 1.Size,M4-M60 2.Material:brass, copper ... treatment:Plain or as request High quality brass nut 1. Standard:DIN,ANSI, BSW, JSB ans ISO standard or non-standard as request&design.2 ... . OEM&Customize non-standard products welcome.6. Surface treatment: plain7. professional manufactuer, offers better quality and price ProductHigh quality brass nut Materialbrass, copper ...