MJ30x1 thread ring gage plug gauge 4h6h 4g6g 4H6H 4H5H

MJ30x1 plug gageMJ30x1 ring gage

MJ30x1 4h6h thread ring gage GO&NOGO(4g6g)

MJ 30x 1 4H5H thread plug gauge GO&NOGO (4H6H)

  • Thread form: MJ
  • Diameter: 30
  • Pitch: 1
  • Class of fit: 4h6h 4g6g 4H6H 4H5H

Each MJ30x1 gage 100% calibrated with quality assurance!

RH=right hand  LH=left hand both available

  • MJ30x1 screw plug gage : Taperlock double end with handle
  • MJ 30 x 1 screw ring gauge : Solid

MJ30x1 thread gage calibration certificate

If needed, one long form calibration certificate from professional third party testing lab accredited to ISO/IEC 17025 can be supplied. gaugesools also can provide UKAS certifications if needed. if clients need long form calibration certificate, please tell us. it need extra costs .Our assigned testing lab is authorized by State Administration of Science Technology and Industry for National Defence.

Custom production

All these MJ thread gages need custom production, plug gauges need one week to finish, ring gauges need  two weeks to finish.

About us

gaugestools is a professional manufacturer and supplier of thread ring gages and thread plug gauges,including GO/NOGO, RH/LH(right hand and left hand).We have rich ranges of thread gauges, including Metric, ACME, stub-ACME,BSPP, BSPT, NPT, NPTF, Trapezoidal, UN,UNJ,and MJ etc.

MJ thread’s limit size

Major diameter d Pitch diameter d2 Minor diameter d3
max min Td 6h max min Td2 4h max min Td3
MJ30x1-4h6h 30.000 29.820 0.180 29.350 29.270 0.080 28.845 28.704 0.141

How to use MJ30x1 ring plug gage

  • GO of thread plug gage : it controls workpiece’s internal thread’s pitch diameter and major diameter’s maximum physical size. plug gage’s GO end should be screwed into the entire length of internal thread of workpiece, otherwise, the workpiece’s internal thread is unqualified.
  • NOGO of thread plug gage: it controls workpiece’s internal thread’s single pitch diameter’s minimum physical size. plug gage’s NOGO can be screwed in, but it can’t be screwed in more than two turns. Otherwise, the interial thread is unqualified.
  • GO of thread ring gage: it controls workpiece’s external thread’s pitch diameter and minor diameter’s maximum physical size. ring gage’s GO end should be screwed into the entire length of external thread of workpiece, otherwise, the workpiece’s external thread is unqualified.
  • NOGO of thread ring gage: it controls workpiece’s external thread’s single pitch diameter’s minimum physical size. ring gage’s NOGO can be screwed in, but it can’t be screwed in more than two turns. Otherwise, the external thread is unqualified.

Worldwide shipment , it need just 3-5 days by express.

The pictures are just for reference. As too many items in stock, we haven’t taken pictures one by one..

Check the full range of  MJ thread gage we can provide.

Standard

MJ Thread Standard

ISO DIN ASME,SAE  BS
General requirement ISO 5855-1:1999 DIN ISO 5855-1:1989 ASME B1.21M-1997                   SAE MA 1370-1990 BS A358-1:2000
Inspection ISO 10959:2000 ASME B1.22M-1985  SAE MA1566A-1992 BS ISO 10959:2000

Payment 

We accept credit card, Paypal and bank transfer etc.

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