M4-M16 Bakelite Thumb Nuts Plastic 7-Star Clamping Hand Grip Knob Nut Blind Hole. Thread Pitch: M4 0.7mm / M5 0.8mm / M6 1mm / M8 1.25mm / M10 1.5mm / M12 1.75mm / M14 2mm / M16 2mm. Shape: Seven-Star Plum / Blind Hole.
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