... sample 4.certificate: SGS,Rohs 5.over 10 years manufacturing non-slip function hexagon toothed kep nuts Material:stainless steel,carbon steel ... :50000 pcsStandard:JIS,BS,ISO,DINPacking:carton box,poly bag,and paper bag,or according to the customers'requirementThe products have ... and competitive price.trade term: Ex works,FOB,C&F,CIF free charge of sample sample lead time: within 7 days non-slip ...