Nominal dimensions: M3 x P0.5 Measurement part diameter (mm): 4 Total length (mm): 12 Measurement part length (mm): 5 Deviation of measurement part and threaded part (mm): 0.01 or less Measurement part accuracy (mm): ±0.005 or less Screw taper: 1/15锥度 锥形螺纹零件长度(mm):3.5 直螺纹零件长度(mm):2.5