Unified Thread Gauges
Unified Threads are used for general purpose fastening applications for Imperial system of units.
Specification:
We manufacture Unified Gauges as per American Standard: Basic Dimensions as per ANSI B 1.1:2003 & Gauging Practice as per ANSI/ASME B 1.2-1983. We also manufacture Unified Gauges as per British Standards (BS). Basic Dimensions as per BS 1580 Part 1 & 2 – 2007 & Gauging Practice as per BS 919 Part 1-2007.
Manufacturing Range:
Thread Plug & Ring Gauges from No. 4 (0.112″) to 12″
|
Gauge Type |
Diameter Range (Inch) |
TPI (Threads per Inch) |
Tolerance Class |
|
Thread Plug Gauges. |
No.4 (0.112″-12″) |
48, 44, 40, 36, 32, 28, 24, 20, 18, 16, 14, 13, 12, 11.5, 11, 10, 9, 8,7,6, 5, 4.5, 4 TPI not covered here can be supplied based on customer request |
As given in below Table |
|
Thread Ring Gauges. |
No.4 (0.112″-10.25″) |
48, 44, 40, 36, 32, 28, 24, 20, 18, 16, 14, 13, 12, 11.5,11,10, 9, 8, 7, 6, 5, 4.5, 4 TPI not covered here can be supplied based on customer request. |
As given in below Table |
|
Check Plug Gauges |
To check NEW Go & No-go Ring Gauges as given above. |
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|
Wear Check Plug Gauges |
To check / calibrate USED Go & No-go Ring Gauges as given above. |
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|
Check Ring Gauges |
To check NEW Go & No-go Plug Gauges as given above. |
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|
Wear Check Ring Gauges |
To check / calibrate USED Go & No-go Plug Gauges as given above. |
Tolerance Class
|
Tolerance Class for Plug gauges (Internal threads) |
Tolerance Class for Ring gauges (External threads) |
Application |
|
1B |
1A |
Where quick assembly is needed, even when threads are dirty / damaged. Wide tolerances for male and female threads. |
|
2B |
2A |
Corresponds to medium fit and used for general applications, which requires free assembly. |
|
3B |
3A |
Where closer fit is required. |