M4 x 10mm 4 x 10 Black Inner Hex Button Socket Screw x 10
Black Inner Hex Button Screws - measurement format: diameter thread x long thread (note: measurements repeated twice in title) - Hardness rating - 12.9 - Space to fit 2.5mm allen key in screw head. Note: Picture used for illustration screw may arrive longer or shorter than that shown.
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