M3 M4 M5 M6 M8 M10 M12 M16 M20 Metric Dowel 45# Steel Pins Hardened & Ground
M3(3mm) / M4(4mm) / M5(5mm) / M6(6mm) / M8(8mm)/ M10(10mm) / M12(12mm) / M14(14mm) / M16(16mm)/ M20(20mm). The product is made of 40CR steel quenched and surface heat treated, which has good characteristics such as high hardness and heat resistance.