10/50pcs M2 M2.5 M3 M3.5 M4 M5 M6 M8 DIN916 noir grade 12.9 en acier allié Hexagon Socket Allen Cup Point Grub vis jeu boulon

10/50pcs M2 M2.5 M3 M3.5 M4 M5 M6 M8 DIN916 noir grade 12.9 en acier allié Hexagon Socket Allen Cup Point Grub vis jeu boulon

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