M3-M16 304 Prevailing Torque Type All Metal Insert Hex Hexagon Self Lock Nut

8mm(M8) / 10mm(M10) / 12mm(M12) / 14mm(M14) / 16mm(M16). 1.25mm(M8) / 1.5mm(M10) / 1.75mm(M12) / 2mm(M14) / 2mm(M16). It may also be left at local. 3mm(M3) / 4mm(M4) / 5mm(M5) / 6mm(M6). 0.5mm(M3) / 0.7mm(M4) / 0.8mm(M5) / 1.0mm(M6).

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