5-50pcs DIN912 M2 M2.5 M3 M4 M5 M6 M8 304 A2 grade 12.9 Black Hexagon Stainless Steel Hex Socket Head Cap Allen Bolt Screw

5-50pcs DIN912 M2 M2.5 M3 M4 M5 M6 M8 304 A2 grade 12.9 Black Hexagon Stainless Steel Hex Socket Head Cap Allen Bolt Screw

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