Metric Thread Ring Gage Pitch Diameters

6H Metric No Go Member

6H Inch Go Member

M1.6 x 0.35

1.354

1.291

0.05331

0.05083

M1.8 x 0.35

1.554

1.491

0.06118

0.05700

M2 x 0.4

1.721

1.654

0.06776

0.06512

M2.2 x .45

1.888

1.817

0.07433

0.07154

M2.5 x 0.45

2.188

2.117

0.08614

0.08335

M3 x 0.5

2.655

2.580

0.10453

0.10157

M3.5 x 0.6

3.089

3.004

0.12161

0.11827

M4 x 0.7

3.523

3.433

0.13870

0.13516

M4.5 x 0.75

3.991

3.901

0.15713

0.15358

M5 x 0.8

4.456

4.361

0.17543

0.17169

M5.5 x 0.75

4.991

4.901

0.19650

0.19295

M6 x 1.0

5.324

5.212

0.20961

0.20520

M6.3 x 1.0

5.624

5.512

0.22142

0.21701

M7 x 1.0

6.324

6.212

0.24898

0.24457

M8 x 1.25

7.160

7.042

0.28189

0.27724

M8 x 1.0

7.324

7.212

0.28835

0.28394

M9 x 1.25

8.160

8.042

0.32126

0.31661

M10 x 0.75

9.491

9.391

0.37366

0.36972

M10 x 1.5

8.994

8.862

0.35409

0.34890

M10 x 1.25

9.160

9.042

0.36063

0.35598

M11 x 1.5

9.994

9.862

0.39346

0.38827

M12 x 1.0

11.324

11.206

0.44583

0.44118

M12 x 1.50

10.994

10.854

0.43283

0.42732

M12 x 1.75

10.829

10.679

0.42634

0.42043

M12 x 1.25

11.160

11.028

0.43937

0.43417

M14 x 2.0

12.663

12.503

0.49854

0.49224

M14 x 1.5

12.994

12.854

0.51157

0.50606

M15 x 1.5

13.994

13.854

0.55094

0.54543

M15 x 1.0

14.324

14.206

0.56394

0.55929

M16 x 2.0

14.663

14.503

0.57728

0.57098

M16 x 1.5

14.994

14.854

0.59031

0.58480

M17 x 1.0

16.324

16.206

0.64268

0.63803

M17 x 1.5

15.994

15.854

0.62968

0.62417

M18 x 2.5

16.334

16.164

0.64307

0.63638

M18 x 1.5

16.994

16.854

0.66905

0.66354

M20 x 1.0

19.324

19.206

0.76079

0.75614

M20 x 2.5

18.334

18.164

0.72181

0.71512

M20 x 1.5

18.994

18.854

0.74779

0.74228

M22 x 2.5

20.334

20.164

0.80055

0.79386

M22 x 1.5

20.994

20.854

0.82653

0.82102

M24 x 3.0

22.003

21.803

0.86626

0.85838

M24 x 2.0

22.663

22.493

0.89224

0.88555

M25 x 2.0

23.663

23.493

0.93161

0.92492

M25 x 1.5

23.994

23.844

0.94464

0.93874

M26 x 1.5

24.994

24.844

0.98401

0.97811

M26 x 1.0

25.324

25.212

0.99701

0.99260

M27 x 3.0

25.003

24.803

0.98437

0.97649

M27 x 2.0

25.663

25.493

1.01035

1.00366

M28 x 2.0

26.663

26.493

1.04972

1.04303

M28 x 1.5

26.994

26.844

1.07625

1.05684

M28 x 1.0

27.324

27.199

1.07575

1.07082

M30 x 1.5

28.994

28.844

1.14150

1.13559

M30 x 3.5

27.674

27.462

1.08953

1.08118

M30 x 2.0

28.663

28.493

1.12846

1.12177

M32 x 2.0

30.663

30.493

1.20720

1.20051

M32 x 1.5

30.994

30.844

1.22023

1.21432

M33 x 3.5

30.674

30.462

1.20764

1.19929

M33 x 2.0

31.663

31.493

1.24657

1.23988

M35 x 1.5

33.994

33.844

1.33834

1.33244

M36 x 2.0

34.663

34.493

1.36469

1.35799

M36 x 4.0

33.342

33.118

1.31267

1.30386

M36 x 3.0

34.003

33.803

1.33870

1.33082

M38 x 1.5

36.994

36.844

1.45645

1.45055

M39 x 2.0

37.663

37.493

1.48280

1.47610