Thread Gauges

API Thread Gage Library

Below is a list of J.A. King’s API certified thread and plug gages.

Size Thread Type
1.05 IO NON UP TBG API
1.05 IO NON UP TBG API
1.25 API Line Pipe
1.25 11 1/2 API Line Pipe Reference Master
1.315 NON UP TBG API Reference Master
1.315 NON UP TBG API Reference Master
1.315 UP TBG API
1.315 EXT UP TBG API Reference Master
1.5 API LP
1.5 API LP
1.5 Valve Removal Master P-61611
1.5 Sharp V TBG Master R-56463
1.66 EXT UP TBG API Reference Master
1.66 EXT UP TBG API
1.66 OD NON UP API TBG Master P-32254
1.66 OD NON UP API TBG Master R-32253
1.9 NON UP TBG API Reference Master
1.9 NON UP TBG API Reference Master
1.9 EXT UP TBG API Reference Master
1.900 EXT UP TBG API
2 11 1/2 LP API Master Plug Gage
2 11 1/2″ LP API Master Ring Gage
2 API Line Pipe
2 API Line Pipe
2.375 UP TBG API Master Plug Gage
2.375 UP TBG API Master Ring Gage
2.375 NON UP TBG API Reference Master
2.375 NON UP TBG API Reference Master
2.5 11 1/2 Sharp V TBG
2.5 11 1/2 Sharp V TBG
2.5 API LP
2.5 API LP
2.875 EXT UP TBG
2.875 EXT UP TBG
2.875 API Non Upset Tubing
2.875 API Non Upset Tubing
2.875 TBG
3 API LP
3 API Line Pipe
3.5 API Line Pipe
3.5 API Line Pipe
3.5 API UP TBG Master P-31150
3.5 OD API UP TBG Master R-31147
3.5 OD API TBG Master P-31153
3.5 OD API TBG Master R-30932
4 API Line Pipe
4 API Line Pipe
4.5 API IF Rotary NC50
4.5 API IF Rotary NC50 R-27226
4.5 API Buttress CSG Master P-30991
4.5 API Buttress CSG Master R-30588
4.5 NON UP TBG API Reference Master
4.5 NON UP TBG API Reference Master
4.5 CSG API Reference Master
4.5 CSG API Refeerence Master
4.5 EXT UP TBG API Reference Master
4.5 EXT UP TBG Reference Master
5 API LP
5 API Line Pipe
5 API CSG Reference Master
5 API CSG Reference Master
5.5 API CSG Master
5.5 API CSG Master
5.5 API Buttress CSG Master P-30555
5.5 API Buttress CSG R-30559
6 API LP
6 API LP
6.625 API Casing Reference Master
6.625 API Casing Reference Master
7 API CSG Master
7 API CSG Master
7 API Buttress CSG Master P-30561
7 API Buttress CSG Master R-30942
7.625 API Casing Reference Master
7.625 API CSG Reference Master
7.625 API Buttress CSG Master P-31052
7.625 API Buttress CSG Master R-31055
8.625 API Casing Reference Master
8.625 API Casing Reference Master
8.625 API Buttress CSG Master P-29485
8.625 API Buttress CSG Master R-30698
9.625 8 API CSG Master Ring Gage
9.625 8 API CSG Master Plug Gage
9.625 API Buttress CSG Master P-29674
9.625 API Buttress CSG Master R-29775
10.75 API CSG Master
10.75 API CSG Master
10.75 API Buttress CSG Master P-29176
10.75 API Buttress CSG Master R-29177
11.75 API Buttress CSG Master P-30679
11.75 API Buttress CSG Master R-30616
11.75 API CSG Master P-30818
11.75 API CSG Master R-30820
13.375 8 API CSG Master Ring Gage
13.375 8 API CSG Master Plug Gage
13.375 API Buttress CSG Master R-28927
13.375 API Buttress CSG Master R-28928
16 API Buttress CSG Master P-28634
16 API Buttress CSG Master R-28635
16 API CSG Master
16 API CSG Master
18.625 API CSG Master
18.625 API CSG Master R-31989
20 API Buttress CSG Master P-28638
20 API Buttress CST Master R-28639
20 API CSG Master R-29000
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