Specification
- American Specifications : ANSI/ ASME B1.9 : 1973 for 7o/45o thread Profile.
- B.S Specifications : B.S 1657 : 1950 used for 7o/45o and 0/52o thread profile.
- DIN Specifications : Basic Dimensions : DIN 513 : 1985, IS 4696 : 2004
- Gauging Practice : DIN 103 - 9 : 1985.
Manufacturing Range :
- Thread Plugs , Thread Rings, Check Plugs & Wear Check Plugs of Diameter from 1/2" to 14" and TPI from 20 to 2.
| Gauge Type | Diameter Range (Inch) | TPI (Threads per Inch) | Tolerance Class as per BS 1657 |
Tolerance Class as per ANSI B1.9 |
Tolerance Class as per DIN |
| Thread Plug Gauges. | 0.5 - 12 | 20, 16, 12, 10, 8, 6, 5, 4, 3 TPI not covered here can be supplied if requested by customer |
Free Medium Close |
Class 2 (standard grade) Class 3 (precision grade) |
7H |
| Thread Ring Gauges. | 0.5 -10.2 | 7e | |||
| Check Plug Gauges. | 0.5 -12 | 7e | |||
| Wear Check Plug Gauges. | 0.5 -12 | 7e |