1-20pcs Hexagon Socket Head Cap Screws 8.8 Grade Blue Zinc Carbon Steel M3 M4 M5 M6 M8 M10 M16 Hex Socket Allen Cap Screw GB70

1-20pcs Hexagon Socket Head Cap Screws 8.8 Grade Blue Zinc Carbon Steel M3 M4 M5 M6 M8 M10 M16 Hex Socket Allen Cap Screw GB70

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