12.9 Grade Fine Thread Socket Screws Hex Hexagon Cap Screws Allen Bolts M6 M8 M10 M12 M14 M16 M18 M20 Pitch 0.75/1/1.25/1.5mm

12.9 Grade Fine Thread Socket Screws Hex Hexagon Cap Screws Allen Bolts M6 M8 M10 M12 M14 M16 M18 M20 Pitch 0.75/1/1.25/1.5mm

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