Drive:Six Lobe. Thread Pitch:0.5mm(M3) / 0.7mm(M4) / 0.8mm(M5) / 1mm(M6) / 1.25mm(M8) / 1.5mm(M10). Material:Grade 10.9 Alloy Steel. Thread length: 4mm~40mm(Excluding head thickness). If you encounter any problems with your order, we are here to help.
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