Drive Style:Hex-Key. Material:12.9 Grade High Tensile Steel. Thread Pitch:M2(0.4mm) / M2.5(0.45mm) / M3(0.5mm) / M3.5(0.6mm) /M4(0.7mm) / M5(0.8mm) / M6(1mm) / M8(1.25mm) / M10(1.5mm)/ M12 (1.75mm). Length:3mm-100mm(Excluding head length).
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