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Truncated Setting Plug Gages

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Truncated Setting Plug Gages

  • Calibrates and sets an adjustable thread ring gage and inspects it for wear
  • Common pitch diameter the full thread length of the GO or NOGO section
  • Crest of the thread is truncated in diameter for the first half of the set plug and “full form” the remaining length
  • Truncated section is used to set the pitch diameter
  • Full form is used to detect flank angle problems or undersize major diameters in the thread rings
  • ASME/ANSI B1. 2 and ANSI/ASME B1.16M compliant
  • Precision hand lapped to provide optimum finish and superior accuracy
  • Manufactured to the highest end of the ANSI specifications to ensure the longest gage life possible
  • Final inspection of gages is completed in an environmentally controlled ISO 17025 laboratory
  • Available in steel and chrome
  • Free NIST certificate of accuracy

Standard Pitch Diameter Chart - Inch

Standard Pitch Diameter Chart - Metric


Please select a measure:


Steel Chrome
Size Member Item # Price Sale Price Item # Price
0-80 GO / NOGOTSP-01$107.00$97.00TSPC-01Call
DOUBLE ENDTSPDE-01$225.00$205.00TSPCDE-01Call
1-64 GO / NOGOTSP-02 $107.00$97.00TSPC-02 Call
DOUBLE ENDTSPDE-02$225.00$205.00TSPCDE-02Call
1-72 GO / NOGOTSP-03 $107.00$97.00TSPC-03 Call
DOUBLE ENDTSPDE-03$225.00$205.00TSPCDE-03Call
2-56 GO / NOGOTSP-04 $107.00$97.00TSPC-04 Call
DOUBLE ENDTSPDE-04$225.00$205.00TSPCDE-04Call
2-64 GO / NOGOTSP-05$107.00$97.00TSPC-05Call
DOUBLE ENDTSPDE-05$225.00$205.00TSPCDE-05Call
3-48 GO / NOGOTSP-06$100.00$90.00TSPC-06Call
DOUBLE ENDTSPDE-06$211.00$192.00TSPCDE-06Call
3-56 GO / NOGOTSP-07$100.00$90.00TSPC-07Call
DOUBLE ENDTSPDE-07$211.00$192.00TSPCDE-07Call
4-40 GO / NOGOTSP-08$90.00$82.00TSPC-08Call
DOUBLE ENDTSPDE-08$192.00$174.00TSPCDE-08Call
4-48 GO / NOGOTSP-09$90.00$82.00TSPC-09Call
DOUBLE ENDTSPDE-09$192.00$174.00TSPCDE-09Call
5-40 GO / NOGOTSP-10$83.00$75.00TSPC-10Call
DOUBLE ENDTSPDE-10$177.00$161.00TSPCDE-10Call
5-44 GO / NOGOTSP-11$83.00$75.00TSPC-11Call
DOUBLE ENDTSPDE-11$177.00$161.00TSPCDE-11Call
6-32 GO / NOGOTSP-12$83.00$75.00TSPC-12Call
DOUBLE ENDTSPDE-12$177.00$161.00TSPCDE-12Call
6-40 GO / NOGOTSP-13$83.00$75.00TSPC-13Call
DOUBLE ENDTSPDE-13$177.00$161.00TSPCDE-13Call
8-32 GO / NOGOTSP-14$83.00$75.00TSPC-14Call
DOUBLE ENDTSPDE-14$177.00$161.00TSPCDE-14Call
8-36 GO / NOGOTSP-15$83.00$75.00TSPC-15Call
DOUBLE ENDTSPDE-15$177.00$161.00TSPCDE-15Call
10-24 GO / NOGOTSP-16$83.00$75.00TSPC-16Call
DOUBLE ENDTSPDE-16$177.00$161.00TSPCDE-16Call
10-32 GO / NOGOTSP-17$83.00$75.00TSPC-17Call
DOUBLE ENDTSPDE-17$177.00$161.00TSPCDE-17Call
12-24 GO / NOGOTSP-18$90.00$82.00TSPC-18Call
DOUBLE ENDTSPDE-18$192.00$174.00TSPCDE-18Call
12-28 GO / NOGOTSP-19$90.00$82.00TSPC-19Call
DOUBLE ENDTSPDE-19$192.00$174.00TSPCDE-19Call
12-32 GO / NOGOTSP-20$107.00$97.00TSPC-20Call
DOUBLE ENDTSPDE-20$225.00$205.00TSPCDE-20Call
1/4-20 GO / NOGOTSP-21$77.00$69.00TSPC-21Call
DOUBLE ENDTSPDE-21$164.00$150.00TSPCDE-21Call
1/4-28 GO / NOGOTSP-22$77.00$69.00TSPC-22Call
DOUBLE ENDTSPDE-22$164.00$150.00TSPCDE-22Call
1/4-32 GO / NOGOTSP-23$109.00$99.00TSPC-23Call
DOUBLE ENDTSPDE-23$229.00$209.00TSPCDE-23Call
5/16-18 GO / NOGOTSP-24$77.00$69.00TSPC-24Call
DOUBLE ENDTSPDE-24$164.00$150.00TSPCDE-24Call
5/16-24 GO / NOGOTSP-25$77.00$69.00TSPC-25Call
DOUBLE ENDTSPDE-25$164.00$150.00TSPCDE-25Call
5/16-32 GO / NOGOTSP-26$109.00$99.00TSPC-26Call
DOUBLE ENDTSPDE-26$229.00$209.00TSPCDE-26Call
3/8-16 GO / NOGOTSP-27$79.00$71.00TSPC-27Call
DOUBLE ENDTSPDE-27$169.00$154.00TSPCDE-27Call
3/8-24 GO / NOGOTSP-28$79.00$71.00TSPC-28Call
DOUBLE ENDTSPDE-28$169.00$154.00TSPCDE-28Call
3/8-32 GO / NOGOTSP-29$129.00$117.00TSPC-29Call
DOUBLE ENDTSPDE-29$269.00$245.00TSPCDE-29Call
7/16-14 GO / NOGOTSP-30$84.00$76.00TSPC-30Call
DOUBLE ENDTSPDE-30$179.00$163.00TSPCDE-30Call
7/16-20 GO / NOGOTSP-31$84.00$76.00TSPC-31Call
DOUBLE ENDTSPDE-31$179.00$163.00TSPCDE-31Call
7/16-28 GO / NOGOTSP-32$129.00$117.00TSPC-32Call
DOUBLE ENDTSPDE-32$269.00$245.00TSPCDE-32Call
1/2-13 GO / NOGOTSP-33$87.00$79.00TSPC-33Call
DOUBLE ENDTSPDE-33$185.00$169.00TSPCDE-33Call
1/2-20 GO / NOGOTSP-34$87.00$79.00TSPC-34Call
DOUBLE ENDTSPDE-34$185.00$169.00TSPCDE-34Call
1/2-28 GO / NOGOTSP-35$142.00$128.00TSPC-35Call
DOUBLE ENDTSPDE-35$295.00$268.00TSPCDE-35Call
9/16-12 GO / NOGOTSP-36$100.00$90.00TSPC-36Call
DOUBLE ENDTSPDE-36$211.00$192.00TSPCDE-36Call
9/16-18 GO / NOGOTSP-37$100.00$90.00TSPC-37Call
DOUBLE ENDTSPDE-37$211.00$192.00TSPCDE-37Call
9/16-24 GO / NOGOTSP-38$152.00$138.00TSPC-38Call
DOUBLE ENDTSPDE-38$316.00$287.00TSPCDE-38Call
5/8-11 GO / NOGOTSP-39$104.00$94.00TSPC-39Call
DOUBLE ENDTSPDE-39$219.00$199.00TSPCDE-39Call
5/8-18 GO / NOGOTSP-40$104.00$94.00TSPC-40Call
DOUBLE ENDTSPDE-40$219.00$199.00TSPCDE-40Call
5/8-24 GO / NOGOTSP-41$153.00$139.00TSPC-41Call
DOUBLE ENDTSPDE-41$318.00$288.00TSPCDE-41Call
11/16-24 GO / NOGOTSP-42$167.00$151.00TSPC-42Call
DOUBLE ENDTSPDE-42$345.00$313.00TSPCDE-42Call
3/4-10 GO / NOGOTSP-43$120.00$108.00TSPC-43Call
DOUBLE ENDTSPDE-43$250.00$228.00TSPCDE-43Call
3/4-16 GO / NOGOTSP-44$120.00$108.00TSPC-44Call
DOUBLE ENDTSPDE-44$250.00$228.00TSPCDE-44Call
3/4-20 GO / NOGOTSP-45$161.00$145.00TSPC-45Call
DOUBLE ENDTSPDE-45$332.00$302.00TSPCDE-45Call
13/16-20 GO / NOGOTSP-46$170.00$154.00TSPC-46Call
DOUBLE ENDTSPDE-46$351.00$319.00TSPCDE-46Call
7/8-9 GO / NOGOTSP-47$141.00$127.00TSPC-47Call
DOUBLE ENDTSPDE-47$292.00$266.00TSPCDE-47Call
7/8-14 GO / NOGOTSP-48$141.00$127.00TSPC-48Call
DOUBLE ENDTSPDE-48$292.00$266.00TSPCDE-48Call
7/8-20 GO / NOGOTSP-49$175.00$159.00TSPC-49Call
DOUBLE ENDTSPDE-49$362.00$328.00TSPCDE-49Call
5/16-20 GO / NOGOTSP-50$179.00$162.00TSPC-50Call
DOUBLE ENDTSPDE-50$368.00$334.00TSPCDE-50Call
1-8 GO / NOGOTSP-51$161.00$145.00TSPC-51Call
DOUBLE ENDTSPDE-51$332.00$302.00TSPCDE-51Call
1-12 GO / NOGOTSP-52$161.00$145.00TSPC-52Call
DOUBLE ENDTSPDE-52$332.00$302.00TSPCDE-52Call
1-14 GO / NOGOTSP-53$161.00$145.00TSPC-53Call
DOUBLE ENDTSPDE-53$332.00$302.00TSPCDE-53Call
1-20 GO / NOGOTSP-54$191.00$173.00TSPC-54Call
DOUBLE ENDTSPDE-54$393.00$357.00TSPCDE-54Call
1 1/16-18 GO / NOGOTSP-55$187.00$169.00TSPC-55Call
DOUBLE ENDTSPDE-55$385.00$349.00TSPCDE-55Call
1 1/8-7 GO / NOGOTSP-56$187.00$169.00TSPC-56Call
DOUBLE ENDTSPDE-56$385.00$349.00TSPCDE-56Call
1 1/8-12 GO / NOGOTSP-57$187.00$169.00TSPC-57Call
DOUBLE ENDTSPDE-57$385.00$349.00TSPCDE-57Call
1 1/8-18 GO / NOGOTSP-58$200.00$181.00TSPC-58Call
DOUBLE ENDTSPDE-58$410.00$372.00TSPCDE-58Call
1 3/16-18 GO / NOGOTSP-59$200.00$181.00TSPC-59Call
DOUBLE ENDTSPDE-59$411.00$373.00TSPCDE-59Call
11 1/4-7 GO / NOGOTSP-60$206.00$186.00TSPC-60Call
DOUBLE ENDTSPDE-60$424.00$384.00TSPCDE-60Call
1 1/4-12 GO / NOGOTSP-61$206.00$186.00TSPC-61Call
DOUBLE ENDTSPDE-61$424.00$384.00TSPCDE-61Call
1 1/4-18 GO / NOGOTSP-62$232.00$210.00TSPC-62Call
DOUBLE ENDTSPDE-62$476.00$432.00TSPCDE-62Call
1 5/16-18 GO / NOGOTSP-63$235.00$213.00TSPC-63Call
DOUBLE ENDTSPDE-63$482.00$438.00TSPCDE-63Call
1 3/8-6 GO / NOGOTSP-64$236.00$214.00TSPC-64Call
DOUBLE ENDTSPDE-64$485.00$440.00TSPCDE-64Call
1 3/8-12 GO / NOGOTSP-65$236.00$214.00TSPC-65Call
DOUBLE ENDTSPDE-65$485.00$440.00TSPCDE-65Call
1 3/8-18 GO / NOGOTSP-66$245.00$221.00TSPC-66Call
DOUBLE ENDTSPDE-66$501.00$455.00TSPCDE-66 Call
1 7/16-18 GO / NOGOTSP-67$250.00$226.00TSPC-67Call
DOUBLE ENDTSPDE-67$512.00$464.00TSPCDE-67 Call
1 1/2-6 GO / NOGOTSP-68$253.00$229.00TSPC-68Call
DOUBLE ENDTSPDE-68$518.00$470.00TSPCDE-68 Call
1 1/2-12 GO / NOGOTSP-69$253.00$229.00TSPC-69Call
DOUBLE ENDTSPDE-69$518.00$470.00TSPCDE-69 Call
1 1/2-18 GO / NOGOTSP-70$261.00$237.00TSPC-70Call
DOUBLE ENDTSPDE-70$535.00$485.00TSPCDE-70 Call


The Truncated setting plug gage is designed for two functions; to calibrate and set an adjustable thread ring gage, and to inspect the ring gage for wear. They have a common pitch diameter the full thread length of the GO or NOGO section. The crest of the thread is truncated in diameter for the first half of the set plug and “full form” the remaining length. The truncated section is used to set the pitch diameter and the full form is used to detect flank angle problems or undersize major diameters in the thread rings.

Truncated set plug gages are manufactured to ASME/ANSI B47.1 AGD standard and are ASME/ANSI B1.2, ANSI/ASME B1.16M compliant. Manufactured to the highest end of the ANSI specifications to ensure the longest gage life possible. Set plugs are held to Class W tolerances on lead, flank angles and straightness (taper) and to Class X tolerance for pitch diameter for inch and to Class 6g class of fit for pitch diameter for metric. Class W tolerance for pitch diameter quoted upon request. Available in steel and chrome.

WESTport Gage provides a Certificate of Accuracy, traceable to NIST (National Institute of Standards and Technology), free of charge with every gage.

WESTport Manufactured Products. 24th Anniversary Servicing Industry Worldwide (1989-2013)