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API Thread Ring Gauge Thread Plug Gauge
We can make all kinds of types Go & No go Gauge according to customers demand.
Our gage engineering team is ready to design and work with you on all your thread gaging needs;
We provide a complete line of API (American Petroleum Institute) plug and ring gages for(both working & masters):
| BCSG | CSG | NC | IF | TBG(NU) | UP TBG | REG | FH |
| 4 1/2 BCSG | 4 1/2 CSG | NC23 | 2 3/8 IF | 2 3/8 TBG (NU) | 2 3/8 UP TBG(EUE) | 2 3/8 REG | 2 7/8 FH |
| 5 BCSG | 5 CSG | NC26 | 2 3/7 IF | 2 7/8 TBG (NU) | 2 7/8 UP TBG(EUE) | 2 7/8 REG | 3 1/2 FH |
| 5 1/2 BCSG | 5 1/2 CSG | NC31 | 3 1/2 IF | 3 1/2 TBG (NU) | 3 1/2 UP TBG(EUE) | 3 1/2 REG | 4"FH |
| 6 5/8 BCSG | 6 5/8 CSG | NC35 | 4 "IF | 4 TBG (NU) | 4 UP TBG(EUE) | 4 1/2 REG | 4 1/2 FH |
| 7 BCSG | 7 CSG | NC38 | 4 1/2 IF | 4 1/2 TBG (NU) | 4 1/2 UP TBG(EUE) | 5 1/2 REG | 5 1/2 FH |
| 7 5/8 BCSG | 7 5/8 CSG | NC40 | 5 1/2 IF | 6 5/8 REG | 6 5/8 FH | ||
| 8 5/8 BCSG | 8 5/8 CSG | NC44 | 7 5/8 REG | ||||
| 9 5/8 BCSG | 9 5/8 CSG | NC46 | 8 5/8 REG | ||||
| 10 3/4 BCSG | 10 3/4 CSG | NC50 | |||||
| 11 3/4 BCSG | 11 3/4 CSG | NC56 | |||||
| 13 3/8 BCSG | 13 3/8 CSG | NC61 | |||||
| 16 BCSG | 16 CSG | NC70 | |||||
| 18 5/8 BCSG | 18 5/8 CSG | NC77 | |||||
| 20 BCSG | 20 CSG |
UP TBG, EU LINE PIPE or LP ; DP UP DP Gauge