Materials: NCN - CAGE: CARBON STEEL C 67 S UNI EN 10132-4 NUT: STEEL CL6 UNI EN 20898/2 ZINC YELLOW OR WHITE CHR 3 NSCN - CAGE: STAINLESS STEEL X5 Cr Ni 18/10 UNI EN 10088-2 NUT: STEEL CL. 6 UNI EN 20898/2 ZINC YELLOW OR WHITE CHR 3 NICN - CAGE: STAINLESS STEEL X5 CrNi 18/10 UNI EN 10088-2 NUT: STAINLESS STEEL X5 Cr Ni...