Thread Ring Gages - Metric

Thread Check, Inc. offers a complete line of AGD ‐ American Gage Design, adjustable metric thread ring gages and truncated set plugs. Thread ring gages and set plugs are manufactured per ANSI/ASME B1.16M. Thread ring gages and set plugs are manufactured to an X tolerance in a 6g class of fit. Thread set plugs are made to a class X tolerance on pitch diameter and class W tolerance on lead and angle. Metric thread ring gages and set plugs are available in coarse, fine, and special pitch sizes. Set plug gages are used to calibrate adjustable style thread ring gages. AGD adjustable style thread ring gages can only be calibrated by means of a setplug. Thread Check manufactures many types of special gages including pre‐plates, multiple starts, special leads, acme threads, buttress threads, square threads, extra length thread gages, and custom gages to print. All thread ring gages and set plugs are traceable to N.I.S.T.

SKU Description Size (MM) Coarse Fine Pitch Diameter Each
M1.6x.35-TRG-GO M1.6 x .35 6g Go Thread Ring Gage M1.6 .35 N/A 1.354mm
$170.00
M1.6x.35-TRG-NGO M1.6 x .35 6g NoGo Thread Ring Gage M1.6 .35 N/A 1.291mm
$170.00
M1.6x.35-TRG-SET M1.6 x .35 6g Go/NoGo Ring Gage M1.6 .35 N/A 1.354mm - 1.291mm
$340.00
M1.8x.35-TRG-GO M1.8 x .35 6g Go Thread Ring Gage M1.8 .35 N/A 1.554mm
$170.00
M1.8x.35-TRG-NGO M1.8 x .35 6g NoGo Thread Ring Gage M1.8 .35 N/A 1.491mm
$170.00
M1.8x.35-TRG-SET M1.8 x .35 6g Go/NoGo Ring Gage M1.8 .35 N/A 1.554mm - 1.491mm
$340.00
M2x.40-TRG-GO M2 x .40 6g Go Thread Ring Gage M2 .40 N/A 1.721mm
$140.00
M2x.40-TRG-NGO M2 x .40 6g NoGo Thread Ring Gage M2 .40 N/A 1.654mm
$140.00
M2X.40-TRG-SET M2 x .40 6g Go/NoGo Ring Gage M2 .40 N/A 1.721mm - 1.654mm
$280.00
M2.2x.45-TRG-GO M2.2 x .45 6g Go Thread Ring Gage M2.2 .45 N/A 1.888mm
$140.00
M2.2x.45-TRG-NGO M2.2 x .45 6g NoGo Thread Ring Gage M2.2 .45 N/A 1.817mm
$140.00
M2.2x.45-TRG-SET M2.2 x .45 6g Go/NoGo Ring Gage M2.2 .45 N/A 1.888mm - 1.817mm
$280.00
M2.5x.45-TRG-GO M2.5 x .45 6g Go Thread Ring Gage M2.5 .45 N/A 2.188mm
$140.00
M2.5x.45-TRG-NGO M2.5 x .45 6g NoGo Thread Ring Gage M2.5 .45 N/A 2.117mm
$140.00
M2.5x.45-TRG-SET M2.5 x .45 6g Go/NoGo Ring Gage M2.5 .45 N/A 2.188mm - 2.117mm
$280.00
M3x.5-TRG-GO M3 x .5 6g Go Thread Ring Gage M3 .5 N/A 2.655mm
$120.00
M3x.5-TRG-NGO M3 x .5 6g NoGo Thread Ring Gage M3 .5 N/A 2.580mm
$120.00
M3x.5-TRG-SET M3 x .5 6g Go/NoGo Ring Gage M3 .5 N/A 2.655mm - 2.580mm
$240.00
M3.5x.6-TRG-GO M3.5 x .6 6g Go Thread Ring Gage M3.5 .6 N/A 3.089mm
$120.00
M3.5x.6-TRG-NGO M3.5 x .6 6g NoGo Thread Ring Gage M3.5 .6 N/A 3.004mm
$120.00
M3.5x.6-TRG-SET M3.5 x .6 6g Go/NoGo Ring Gage M3.5 .6 N/A 3.089mm - 3.004mm
$240.00
M4x.7-TRG-GO M4 x .7 6g Go Thread Ring Gage M4 .7 N/A 3.523mm
$120.00
M4x.7-TRG-NGO M4 x .7 6g NoGo Ring M4 .7 N/A 3.433mm
$120.00
M4x.7-TRG-SET M4 x .7 6g Go/NoGo Ring Gage M4 .7 N/A 3.523mm - 3.433mm
$240.00
M4.5x.75-TRG-GO M4.5 x .75 6g Go Thread Ring Gage M4.5 .75 N/A 3.991mm
$120.00
M4.5x.75-TRG-NGO M4.5 x .75 6g NoGo Thread Ring M4.5 .75 N/A 3.901mm
$120.00
M4.5x.75-TRG-SET M4.5 x .75 6g Go/NoGo Ring Gage M4.5 .75 N/A 3.991mm - 3.901mm
$240.00
M5x.8-TRG-GO M5 x .8 6g Go Thread Ring Gage M5 .8 N/A 4.456mm
$120.00
M5x.8-TRG-NGO M5 x .8 6g NoGo Thread Ring Gage M5 .8 N/A 4.361mm
$120.00
M5x.8-TRG-SET M5 x .8 6g Go/NoGo Ring Gage M5 .8 N/A 4.456mm - 4.361mm
$240.00
M6x1.0-TRG-GO M6 x 1.0 6g Go Thread Ring Gage M6 1.0 N/A 5.324mm
$105.00
M6x1.0-TRG-NGO M6 x 1.0 6g NoGo Thread Ring Gage M6 1.0 N/A 5.212mm
$105.00
M6x1.0-TRG-SET M6 x 1.0 6g Go/NoGo Ring Gage M6 1.0 N/A 5.324mm - 5.212mm
$210.00
M7x1.0-TRG-GO M7 x 1.0 6g Go Thread Ring Gage M7 1.0 N/A 6.324mm
$105.00
M7x1.0-TRG-NGO M7 x 1.0 6g NoGo Thread Ring Gage M7 1.0 N/A 6.212mm
$105.00
M7x1.0-TRG-SET M7 x 1.0 6g Go/NoGo Ring Gage M7 1.0 N/A 6.324mm - 6.212mm
$210.00
M8x1.0-TRG-GO M8 x 1.0 6g Go Thread Ring Gage M8 1.0 N/A 7.324mm
$105.00
M8x1.0-TRG-NGO M8 x 1.0 6g NoGo Thread Ring Gage M8 1.0 N/A 7.212mm
$105.00
M8x1.0-TRG-SET M8 x 1.0 6g Go/NoGo Ring Gage M8 1.0 N/A 7.324mm - 7.212mm
$210.00
M8x1.25-TRG-GO M8 x 1.25 6g Go Thread Ring Gage M8 N/A 1.25 7.160mm
$105.00
M8x1.25-TRG-NGO M8 x 1.25 6g NoGo Thread Ring Gage M8 N/A 1.25 7.042mm
$105.00
M8x1.25-TRG-SET M8 x 1.25 6g Go/NoGo Ring Gage M8 N/A 1.25 7.160mm - 7.042mm
$210.00
M10x1.25-TRG-GO M10 x 1.25 6g Go Thread Ring Gage M10 N/A 1.25 9.160mm
$115.00
M10x1.25-TRG-NGO M10 x 1.25 6g NoGo Thread Ring Gage M10 N/A 1.25 9.042mm
$115.00
M10x1.25-TRG-SET M10 x 1.25 6g Go/NoGo Ring Gage M10 N/A 1.25 9.160mm - 9.042mm
$230.00
M10x1.5-TRG-GO M10 x 1.5 6g Go Thread Ring Gage M10 1.5 N/A 8.994mm
$115.00
M10x1.5-TRG-NGO M10 x 1.5 6g NoGo Thread Ring Gage M10 1.5 N/A 8.862mm
$115.00
M10x1.5-TRG-SET M10 x 1.5 6g Go/NoGo Ring Gage M10 1.5 N/A 8.994mm - 8.862mm
$230.00
M12x1.0-TRG-GO M12 x 1.0 6g Go Thread Ring Gage M12 N/A 1 11.324mm
$212.00
M12x1.0-TRG-NGO M12 x 1.0 6g NoGo Thread Ring Gage M12 N/A 1 11.206mm
$212.00
M12x1.0-TRG-SET M12 x 1.0 6g Go/NoGo Ring Gage M12 N/A 1 11.324mm - 11.206mm
$424.00
M12x1.25-TRG-GO M12 x 1.25 6g Go Thread Ring Gage M12 N/A 1.25 11.160mm
$121.00
M12x1.25-TRG-NGO M12 x 1.25 6g NoGo Thread Ring Gage M12 N/A 1.25 11.028mm
$121.00
M12x1.25-TRG-SET M12 x 1.25 6g Go/NoGo Ring Gage M12 N/A 1.25 11.160mm - 11.028mm
$242.00
M12x1.5-TRG-GO M12 x 1.5 6g Go Thread Ring Gage M12 1.5 N/A 10.994mm
$121.00
M12x1.5-TRG-NGO M12 x 1.5 6g NoGo Thread Ring Gage M12 1.5 N/A 10.854mm
$121.00
M12x1.5-TRG-SET M12 x 1.5 6g Go/NoGo Ring Gage M12 1.5 N/A 10.994mm - 10.854mm
$242.00
M12x1.75-TRG-GO M12 x 1.75 6g Go Ring M12 1.75 N/A 10.829mm
$121.00
M12x1.75-TRG-NGO M12 x 1.75 6g NoGo Ring M12 1.75 N/A 10.679mm
$121.00
M12x1.75-TRG-SET M12 x 1.75 6g Go/NoGo Ring Gage M12 1.75 N/A 10.829mm - 10.679mm
$242.00
M14x1.5-TRG-GO M14 x 1.5 6g Go Thread Ring Gage M14 N/A 1.5 13.324mm
$128.00
M14x1.5-TRG-NGO M14 x 1.5 6g NoGo Thread Ring Gage M14 N/A 1.5 13.206mm
$128.00
M14x1.5-TRG-SET M14 x 1.5 6g Go/NoGo Ring Gage M14 N/A 1.5 13.324mm - 13.206mm
$256.00
M14x2.0-TRG-GO M14 x 2.0 6g Go Thread Ring Gage M14 2.0 N/A 12.663mm
$128.00
M14x2.0-TRG-NGO M14 x 2.0 6g NoGo Thread Ring Gage M14 2.0 N/A 12.503mm
$128.00
M14x2.0-TRG-SET M14 x 2.0 6g Go/NoGo Ring Gage M14 2.0 N/A 12.663mm - 12.503mm
$256.00
M16x1.5-TRG-GO M16 x 1.5 6g Go Thread Ring Gage M16 N/A 1.5 14.994mm
$128.00
M16x1.5-TRG-NGO M16 x 1.5 6g NoGo Thread Ring Gage M16 N/A 1.5 14.854mm
$128.00
M16x1.5-TRG-SET M16 x 1.5 6g Go/NoGo Ring Gage M16 N/A 1.5 14.994mm - 14.854mm
$256.00
M16x2.0-TRG-GO M16 x 2.0 6g Go Thread Ring Gage M16 2.0 N/A 14.663mm
$128.00
M16x2.0-TRG-NGO M16 x 2.0 6g NoGo Thread Ring Gage M16 2.0 N/A 14.503mm
$128.00
M16x2.0-TRG-SET M16 x 2.0 6g Go/NoGo Ring Gage M16 2.0 N/A 14.663mm- 14.503mm
$256.00
M18x1.5-TRG-GO M18 X 1.5 6g Go Thread Ring Gage M18 N/A 1.5 16.994mm
$175.00
M18x1.5-TRG-NGO M18 X 1.5 6g NoGo Thread Ring Gage M18 N/A 1.5 16.854mm
$175.00
M18x1.5-TRG-SET M18 x 1.5 6g Go/NoGo Ring Gage M18 N/A 1.5 16.994mm - 16.854mm
$350.00
M18x2.5-TRG-GO M18 x 2.5 6g Go Thread Ring Gage M18 2.5 N/A 16.334mm
$175.00
M18x2.5-TRG-NGO M18 x 2.5 6g NoGo Thread Ring Gage M18 2.5 N/A 16.164mm
$175.00
M18x2.5-TRG-SET M18 x 2.5 6g Go/NoGo Ring Gage M18 2.5 N/A 16.334mm- 16.164mm
$350.00
M20x1.5-TRG-GO M20 x 1.5 6g Go Thread Ring Gage M20 N/A 1.5 18.994mm
$215.00
M20x1.5-TRG-NGO M20 x 1.5 6g NoGo Thread Ring Gage M20 N/A 1.5 18.854mm
$215.00
M20x1.5-TRG-SET M20 x 1.5 6g Go/NoGo Ring Gage M20 N/A 1.5 18.994mm - 18.854mm
$430.00
M20x2.5-TRG-GO M2.0 x 2.5 6g Go Thread Ring Gage M20 2.5 N/A 18.334mm
$218.00
M20x2.5-TRG-NGO M20 x 2.5 6g NoGo Thread Ring Gage M20 2.5 N/A 18.164mm
$218.00
M20x2.5-TRG-SET M20 x 2.5 6g Go/NoGo Ring Gage M20 2.5 N/A 18.334mm - 18.164mm
$436.00
M22x1.5-TRG-GO M22 x 1.5 6g Go Thread Ring Gage M22 N/A 1.5 20.994mm
$222.00
M22x1.5-TRG-NGO M22 x 1.5 6g NoGo Thread Ring Gage M22 N/A 1.5 20.854mm
$222.00
M22x1.5-TRG-SET M22 x 1.5 6g Go/NoGo Ring Gage M22 N/A 1.5 20.994mm - 20.854mm
$444.00
M22x2.5-TRG-GO M22 x 2.5 6g Go Thread Ring Gage M22 2.5 N/A 20.334mm
$222.00
M22x2.5-TRG-NGO M22 x 2.5 6g NoGo Thread Ring Gage M22 2.5 N/A 20.164mm
$222.00
M22x2.5-TRG-SET M22 x 2.5 6g Go/NoGo Ring Gage M22 2.5 N/A 20.334mm - 20.164mm
$444.00
M24x2.0-TRG-GO M24 x 2.0 6g Go Thread Ring Gage M24 N/A 2 22.663mm
$254.00
M24x2.0-TRG-NGO M24 x 2.0 6g NoGo Thread Ring Gage M24 N/A 2 22.493mm
$254.00
M24x2.0-TRG-SET M24 x 2.0 6g Go/NoGo Ring Gage M24 N/A 2 22.663mm - 22.493mm
$508.00
M24x3.0-TRG-GO M24 x 3.0 6g Go Thread Ring Gage M24 3.0 N/A 22.003mm
$254.00
M24x3.0-TRG-NGO M24 x 3.0 6g NoGo Thread Ring Gage M24 3.0 N/A 21.803mm
$254.00
M24x3.0-TRG-SET M24 x 3.0 6g Go/NoGo Ring Gage M24 3.0 N/A 22.003mm - 21.803mm
$508.00
M27x2.0-TRG-GO M27 x 2.0 6g Go Thread Ring Gage M27 N/A 2 25.663mm
$250.00
M27x2.0-TRG-NGO M27 x 2.0 6g NoGo Thread Ring Gage M27 N/A 2 25.493mm
$250.00
M27x2.0-TRG-SET M27 x 2.0 6g Go/NoGo Ring Gage M27 N/A 2 25.663mm - 25.493mm
$500.00
M27x3.0-TRG-GO M27 x 3.0 6g Go Thread Ring Gage M27 3.0 N/A 25.003mm
$250.00
M27x3.0-TRG-NGO M27 x 3.0 6g NoGo Thread Ring Gage M27 3.0 N/A 24.803mm
$250.00
M27x3.0-TRG-SET M27 x 3.0 6g Go/NoGo Ring Gage M27 3.0 N/A 25.003mm - 24.803mm
$500.00
M30x2.0-TRG-GO M30 x 2.0 6g Go Thread Ring Gage M30 N/A 2 28.663mm
$263.00
M30x2.0-TRG-NGO M30 x 2.0 6g NoGo Thread Ring Gage M30 N/A 2 28.493mm
$263.00
M30x2.0-TRG-SET M30 x 2.0 6g Go/NoGo Ring Gage M30 N/A 2 28.663mm - 28.493mm
$526.00
M30x3.5-TRG-GO M30 x 3.5 6g Go Thread Ring Gage M30 3.5 N/A 27.674mm
$320.00
M30x3.5-TRG-NGO M30 x 3.5 6g NoGo Thread Ring Gage M30 3.5 N/A 27.462mm
$320.00
M30x3.5-TRG-SET M30 x 3.5 6g Go/NoGo Ring Gage M30 3.5 N/A 27.674mm - 27.462mm
$640.00
M33x2.0-TRG-GO M33 x 2.0 6g Go Thread Ring Gage M33 N/A 2 31.663mm
$284.00
M33x2.0-TRG-NGO M33 x 2.0 6g NoGo Thread Ring Gage M33 N/A 2 31.493mm
$284.00
M33x2.0-TRG-SET M33 x 2.0 6g Go/NoGo Ring Gage M33 N/A 2 31.663mm - 31.493mm
$568.00
M33x3.5-TRG-GO M33 x 3.5 6g Go Thread Ring Gage M33 3.5 N/A 30.674mm
$300.00
M33x3.5-TRG-NGO M33 x 3.5 6g NoGo Thread Ring Gage M33 3.5 N/A 30.462mm
$300.00
M33x3.5-TRG-SET M33 x 3.5 6g Go/NoGo Ring Gage M33 3.5 N/A 30.674mm - 30.462mm
$600.00
M36x3.0-TRG-GO M36 x 3.0 6g Go Thread Ring Gage M36 N/A 3 34.003mm
$317.00
M36x3.0-TRG-NGO M36 x 3.0 6g NoGo Thread Ring Gage M36 N/A 3 33.803mm
$317.00
M36x3.0-TRG-SET M36 x 3.0 6g Go/NoGo Ring Gage M36 N/A 3 34.003mm - 33.803mm
$634.00
M36x4.0-TRG-GO M36 x 4.0 6g Go Thread Ring Gage M36 4.0 N/A 33.342mm
$332.00
M36x4.0-TRG-NG0 M36 x 4.0 6g NoGo Thread Ring Gage M36 4.0 N/A 33.118mm
$332.00
M36x4.0-TRG-SET M36 x 4.0 6g Go/NoGo Ring Gage M36 4.0 N/A 33.342mm - 33.118mm
$664.00
Set Descending Direction
per page

Additional Info

Use thread setting plugs to calibrate and properly set adjustable thread ring gages. Adjustable Thread rings can only be calibrated by this method. Truncated thread setplugs have a thread with both a truncated and a full form thread for both the go and the no go member. The full form section inspects and sets the correct clearance and forms at the major diameter of the ring gage. The truncated section controls pitch diameter. A thread ring gage should be set on the full form portion of the setplug - the back portion. The ring is then turned onto the truncated portion and should have the same drag and fit as when turned through the full form. A ring gage which spins quickly through the truncated section or "shakes" usually indicates wear. The ring gage should be repaired by relapping if possible or replaced. See Technical Info Document - Calibration Procedures for Thread Ring Gages.

Thread Ring Gages

All Thread Check thread ring gages are root relieved for longer life and more accurate gaging. The gages are manufactured with a root clearance in the major diameter which eliminates the possibility of interference from the full form section of the thread setting plug and major diameter of the part being gaged. This feature assures that the thread flanks are making proper contact.

Long Form Calibration - add $15.00 per gage member.
Thread Check metric thread gages conform to ANSI/ASME B1.16M gage standard and/or H28 handbook.
Special gages including preplates, multiple lead, extra length, etc. are priced on request.
Thread Check, Inc., Thread Set Plugs are class "X" tolerance on pitch diameter and class "W" tolerance on
lead and flank angle. For class "W" tolerance - add 25%.
MJ THREADS: ADD $35 TO GO MEMBER