Unified Thread Ring Gage Size from 1 5/16-18UNEF to 2-20UN,FYOU PMEC Leading Solutions

Unified Thread Ring Gage Size from 1 5/16-18UNEF to 2-20UN

UNS thread gauge is Unified Special Pitch thread gauge; UNEF thread gauges is Unified National Extra Fine thread gauge; UNF thread gauge is UNIFIED NATIONAL FINE thread gage; UNC thread gage is Unified National Coarse thread gage with 60 degree thread angle; UN thread gauge is Unified Constant Pitch thread gauge.
Unified Thread Ring Gauge: Comprehensive inspection of American Standard Unified external threads specified in ANSI B1.1-1982 and FED-STD-H28, H28/3 (1978).
ANSI unified thread ring gauge inspection environment: standard temperature 20°C±1°C.
Unified thread ring gauge inspection: GO end (T) thread ring gauge is inspected with master plug gauges TT and TZ; stop end (Z) thread ring gauge is inspected with master plug gauges ZT and ZZ.

Unified Thread Ring Gage Size from 1 5/16-18UNEF to 2-20UN

Size	T.P.I	Pitch	Class	Go/No Go	Major d	Pitch Dia.d 2	Minor d 1
1 5/16-18UNEF	18	1.41	2A	GO	33.299	32.367	31.758
1 5/16-18UNEF	18	1.41	2A	NO GO	33.299	32.254	31.953
1 3/8-6UNC	6	4.23	2A	GO	34.864	32.093	30.259
1 3/8-6UNC	6	4.23	2A	NO GO	34.864	31.905	30.993
1 3/8-12UNF	12	2.12	2A	GO	34.877	33.487	32.57
1 3/8-12UNF	12	2.12	2A	NO GO	34.877	33.339	32.885
1 3/8-18UNEF	18	1.41	2A	GO	34.887	33.955	33.345
1 3/8-18UNEF	18	1.41	2A	NO GO	34.887	33.842	33.541
1 7/16-18UNEF	18	1.41	2A	GO	36.474	35.542	34.933
1 7/16-18UNEF	18	1.41	2A	NO GO	36.474	35.427	35.126
1 1/2-6UNC	6	4.23	2A	GO	38.039	35.268	33.434
1 1/2-6UNC	6	4.23	2A	NO GO	38.039	35.077	34.166
1 1/2-12UNF	12	2.12	2A	GO	38.052	36.662	35.745
1 1/2-12UNF	12	2.12	2A	NO GO	38.052	36.511	36.058
1 1/2-18UNEF	18	1.41	2A	GO	38.062	37.13	36.52
1 1/2-18UNEF	18	1.41	2A	NO GO	38.062	37.014	36.713
1 9/16-18UNEF	18	1.41	2A	GO	39.649	38.712	38.108
1 9/16-18UNEF	18	1.41	2A	NO GO	39.649	38.6	38.301
1 5/8-18UNEF	18	1.41	2A	GO	41.237	40.3	39.695
1 5/8-18UNEF	18	1.41	2A	NO GO	41.237	40.188	39.888
1 11/16-18UNEF	18	1.41	2A	GO	42.824	41.887	41.283
1 11/16-18UNEF	18	1.41	2A	NO GO	42.824	41.773	41.473
1 3/4-5UNC	5	5.08	2A	GO	44.381	41.057	38.862
1 3/4-5UNC	5	5.08	2A	NO GO	44.381	40.85	39.756
1 3/4-12UN	12	2.12	2A	GO	44.404	43.01	42.098
1 3/4-12UN	12	2.12	2A	NO GO	44.404	42.873	42.421
1 3/4-16UN	16	1.59	2A	GO	44.409	43.358	42.675
1 3/4-16UN	16	1.59	2A	NO GO	44.409	43.238	42.901
1 3/4-20UN	20	1.27	2A	GO	44.412	43.566	43.023
1 3/4-20UN	20	1.27	2A	NO GO	44.412	43.457	43.188
1 13/16-12UN	12	2.12	2A	GO	45.992	44.597	43.685
1 13/16-12UN	12	2.12	2A	NO GO	45.992	44.46	44.008
1 13/16-16UN	16	1.59	2A	GO	45.997	44.945	44.262
1 13/16-16UN	16	1.59	2A	NO GO	45.997	44.826	44.488
1 13/16-20UN	20	1.27	2A	GO	45.999	45.154	44.61
1 13/16-20UN	20	1.27	2A	NO GO	45.999	45.044	44.775
1 7/8-12UN	12	2.12	2A	GO	47.579	46.185	45.273
1 7/8-12UN	12	2.12	2A	NO GO	47.579	46.048	45.596
1 7/8-16UN	16	1.59	2A	GO	47.584	46.533	45.85
1 7/8-16UN	16	1.59	2A	NO GO	47.584	46.413	46.076
1 7/8-20UN	20	1.27	2A	GO	47.587	46.741	46.198
1 7/8-20UN	20	1.27	2A	NO GO	47.587	46.632	46.363
1 15/16-12UN	12	2.12	2A	GO	49.167	47.772	46.86
1 15/16-12UN	12	2.12	2A	NO GO	49.167	47.633	47.181
1 15/16-16UN	16	1.59	2A	GO	49.172	48.12	47.437
1 15/16-16UN	16	1.59	2A	NO GO	49.172	47.998	47.661
1 15/16-20UN	20	1.27	2A	GO	49.174	48.329	47.785
1 15/16-20UN	20	1.27	2A	NO GO	49.174	48.219	47.95
2-4.5UNC	4.5	5.64	2A	GO	50.726	47.036	44.597
2-4.5UNC	4.5	5.64	2A	NO GO	50.726	46.813	45.598
2-12UN	12	2.12	2A	GO	50.754	49.36	48.448
2-12UN	12	2.12	2A	NO GO	50.754	49.22	48.768
2-16UN	16	1.59	2A	GO	50.759	49.708	49.025
2-16UN	16	1.59	2A	NO GO	50.759	49.586	49.248
2-20UN	20	1.27	2A	GO	50.762	49.916	49.373
2-20UN	20	1.27	2A	NO GO	50.762	49.807	49.538

How to order?
Please specify the item size diameter, teeth per inch, accuracy class in your order. We can provide ring gauges in class 1A,2A,3A and plug gauges in class 1B,2B and 3B.

For Example： Ring gauge 2 1/4－12UN-2A GO/NO GO
Plug gauge 2 1/4－12UN-2B GO/NO GO
And E-mail to: sales@fyougauges.com

Super Size thread Gages is available, till to Max Size: 1000 mm ,come with long form calibration certificate.