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Thread Ring and Setting Plugs

Alpha Thread Gage, Inc.

Mailing address:
  PO Box 261
 

 Royal Oak, MI  
  48068-0261

E-MAIL: alphathread@aol.com

Leading the pack in the thread gage industry.

 

(248) 585-5800 · FAX (248) 583-9800

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REFERENCE SHEET

Reference Sheets Available [ Thread Gage Tolerances- Class Y Tolerances ] [ Thread Gage Tolerances- Class W Tolerances ] [ Thread Gage Tolerances- Class X Tolerances ] [ Metric Thread Gages-Thread Rings & Setting Plugs ] [ Metric Thread Gages-Thread Work Plugs ] [ American National Taper Pipe Thread Gages-NPT ] [ Pipe Thread Gages ] [ Unified Thread Gages- Thread Work Plugs- Pitch Diameter Chart ] [ Unified Thread Gages- Thread Ring and Setting Plugs ] [ Gage Pipe Plugs- Internal and External ]
   
Metric Thread Gages
Pitch Diameter Chart
Thread Ring and Setting Plugs
NOMINAL SIZE METRIC DECIMAL REF. ONLY   NOMINAL SIZE METRIC DECIMAL REF. ONLY
Go 6H NoGo 6H Go 6H NoGo 6H Go 6H NoGo 6H Go 6H NoGo 6H
1.6x.35 1.354 1.291 .05331 .05083 17x1.5 15.994 15.854 .62968 .62417
1.8x.35 1.554 1.491 .06118 .0570 18x2.5 16.334 16.164 .64307 .63638
2x.4 1.721 1.654 .06776 .06512 18x1.5 16.994 16.854 .66905 .66354
2.2x.45 1.888 1.817 .07433 .07154 20x1.0 19.324 19.206 .76079 .75614
2.5x.45 2.188 2.117 .08614 .08335 20x2.5 18.334 18.164 .72181 .71512
3x.5 2.655 2.580 .10453 .10157 20x1.5 18.994 18.854 .74779 .74228
3.5x.6 3.089 3.004 .12161 .11827 22x2.5 20.334 20.164 .80055 .79386
4x.7 3.523 3.433 .13870 .13516 22x1.5 20.994 20.854 .82653 .82102
4.5x.75 3.991 3.901 .15713 .15358 24x3.0 22.003 21.803 .86626 .85838
5x.8 4.456 4.361 .17543 .17169 24x2.0 22.663 22.493 .89224 .88555
5.5x.75 4.991 4.901 .19650 .19295 25x2.0 23.663 23.493 .93161 .92492
6x1.0 5.324 5.212 .20961 .20520 25x1.5 23.994 23.844 .94464 .93874
6.3x1.0 5.624 5.512 .22142 .21701 26x1.5 24.994 24.844 .98401 .97811
7x1.0 6.324 6.212 .24898 .24457 26x1.0 25.324 25.212 .99701 .99260
8x1.25 7.160 7.042 .28189 .27724 27x3.0 25.003 24.803 .98437 .97649
8x1.0 7.324 7.212 .28835 .28394 27x2.0 25.663 25.493 1.01035 1.00366
9x1.25 8.160 8.042 .32126 .31661 28x2.0 26.663 26.493 1.04972 1.04303
10x.75 9.491 9.391 .37366 .36972 28x1.5 26.994 26.844 1.07625 1.05684
10x1.5 8.994 8.862 .35409 .34890 28x1.0 27.324 27.199 1.07575 1.07082
10x1.25 9.160 9.042 .36063 .35598 30x1.5 28.994 28.844 1.14150 1.13559
11x1.5 9.994 9.862 .39346 .38827 30x3.5 27.674 27.462 1.08953 1.08118
12x1.0 11.324 11.206 .44583 .44118 30x2.0 28.663 28.493 1.12846 1.12177
12x1.50 10.994 10.854 .43283 .42732 32x2.0 30.663 30.493 1.20720 1.20051
12x1.75 10.829 10.679 .42634 .42043 32x1.5 30.994 30.844 1.22023 1.21432
12x1.25 11.160 11.028 .43937 .43417 33x3.5 30.674 30.462 1.20764 1.19929
14x2.0 12.663 12.503 .49854 .49224 33x2.0 31.663 31.493 1.24657 1.23988
14x1.5 12.994 12.854 .51157 .50606 35x1.5 33.994 33.844 1.33834 1.33244
15x1.5 13.994 13.854 .55094 .54543 36x2.0 34.663 34.493 1.36469 1.35799
15x1.0 14.324 14.206 .56394 .55929 36x4.0 33.342 33.118 1.31267 1.30386
16x2.0 14.663 14.503 .57728 .57098 36x3.0 34.003 33.803 1.33870 1.33082
16x1.5 14.994 14.854 .59031 .58480 38x1.5 36.994 36.844 1.45645 1.45055
17x1.0 16.324 16.206 .64268 .63803 39x2.0 37.663 37.493 1.48280 1.47610

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