m39x4 no go thread gauge

{"cid":"91221137","title":"Precision Metric Ring And Plug Thread Gauge For Thread M39x4 6G NO GO With Calibration Certificate","imgUrl":"https:\/\/img.chinax.com\/nimg\/3a\/b3\/fb70a6e5e1f7874ef6f44e033799-200x200-1.jpg","attrs":{"Brand Name":"KM","Model Number":"KM-R390","Delivery Time":"Within 15days","Certification":"ISO DIN GB RoHS","Place of Origin":"Shaanxi, China","Payment Terms":"T\/T,L\/C,D\/P,D\/A,Western Union,PayPal,MoneyGram","Supply Ability":"50000pieces\/Month","Packaging Details":"ABS Box 6*6*4.5cm\/Piece 0.75kg\/Piece","Warranty":"One Year","Type":"Thread Ring Gauge","Measurement":"Metric","Material":"Tool Steel","Range":"M39x4-6g","Usage":"for Working and Inspection","Shape":"Round","Processing":"Fine Lapping","Package":"ABS Box"}}