Copper Nuts 1.Size:M3-M64 ,1/8-3' 2.Standard:GB,DIN,ISO 3.finish code: ZIPL, NIPL 4.Material: brass,copper, bronze ... ), JIS, or as customer's drawing4Size:M3-M64 , 1/8-3''5Length:5mm-250mm, 1/4''--10''6Finish: Nickel, tin, chrome ... , silver, gold plated or as required7Certifications:ISO9001:2000, Rohs8Delivery time: 3-28 days by quantity and size details9Advantage:30-year history ...