M4 M5 M6 M8 M10 Knurled Nut Insert Threaded Decorative Embedded Nuts Brass
M1.0-M1.2-M1.4-M1.6-M2 soil type, precision tolerance +-0.05, pass through regulations, pass rate of 99%. Support non-standard drawings or sample custom processing! Specifications marked: outside diameter * inner teeth * height