spring nut Material:A2,A3,A4,AL,Copper Finish:Zinc,Black,Hdg etc Size:M2-M72... spring Nut1.Standard:DIN,ISO,AS,NF,JIS ... .Finish:Zinc plate,Black,HDG etc4.PackingWe hope to establish long-term cooperation with you,If you are interested in any ... to contact us. cyfasteners'at'hotmail'dot'com N-08 spring nut