Unified Thread Ring Gage Size from 1/2-20UNF to 1 1/4-18UNEF,FYOU PMEC Leading Solutions

Unified Thread Ring Gage Size from 1/2-20UNF to 1 1/4-18UNEF

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.
Application of Unified Thread Working Ring Gauge: Comprehensive inspection of unified internal threads specified in ANSI B1.1-1982 and FED-STD-H28, H28/3 (1978)
ANSI unified thread working plug gauge inspection environment: standard temperature 20°C ± 1°C, standard condition measurement force is zero.
Unified Thread Working Plug Gauge Inspection Method: The length measuring instrument uses the “three-needle method” to detect a single mean diameter. The universal tool microscope can detect pitch, half angle, minor diameter, and clearance groove.

Unified Thread Ring Gage Size from 1/2-20UNF to 1 1/4-18UNEF

Size	T.P.I	Pitch	Class	Go/No Go	Major d	Pitch Dia.d 2	Minor d 1
1/2-20UNF	20	1.27	2A	GO	12.667	11.826	11.278
1/2-20UNF	20	1.27	2A	NO GO	12.667	11.728	11.458
1/2-28UNEF	28	0.91	2A	GO	12.672	12.068	11.676
1/2-28UNEF	28	0.91	2A	NO GO	12.672	11.985	11.793
9/16-12UNC	12	2.12	2A	GO	14.247	12.857	11.941
9/16-12UNC	12	2.12	2A	NO GO	14.247	12.737	12.283
9/16-18UNF	18	1.41	2A	GO	14.252	13.32	12.71
9/16-18UNF	18	1.41	2A	NO GO	14.252	13.217	12.916
9/16-24UNEF	24	1.06	2A	GO	14.257	13.553	13.099
9/16-24UNEF	24	1.06	2A	NO GO	14.257	13.466	13.241
5/8-11UNC	11	2.31	2A	GO	15.834	14.321	13.32
5/8-11UNC	11	2.31	2A	NO GO	15.834	14.192	13.696
5/8-18UNF	18	1.41	2A	GO	15.839	14.907	14.298
5/8-18UNF	18	1.41	2A	NO GO	15.839	14.799	14.498
5/8-24UNEF	24	1.06	2A	GO	15.845	15.141	14.686
5/8-24UNEF	24	1.06	2A	NO GO	15.845	15.051	14.826
11/16-24UNEF	24	1.06	2A	GO	17.432	16.728	16.274
11/16-24UNEF	24	1.06	2A	NO GO	17.432	16.638	16.413
3/4-10UNC	10	2.54	2A	GO	19.004	17.338	16.238
3/4-10UNC	10	2.54	2A	NO GO	19.004	17.2	16.652
3/4-16UNF	16	1.59	2A	GO	19.012	17.965	17.277
3/4-16UNF	16	1.59	2A	NO GO	19.012	17.85	17.511
3/4-20UNEF	20	1.27	2A	GO	19.017	18.176	17.628
3/4-20UNEF	20	1.27	2A	NO GO	19.017	18.076	17.805
13/16-20UNEF	20	1.27	2A	GO	20.604	19.764	19.215
13/16-20UNEF	20	1.27	2A	NO GO	20.604	19.663	19.393
7/8-9UNC	9	2.82	2A	GO	22.177	20.328	19.103
7/8-9UNC	9	2.82	2A	NO GO	22.177	20.179	19.571
7/8-14UNF	14	1.81	2A	GO	22.184	20.991	20.206
7/8-14UNF	14	1.81	2A	NO GO	22.184	20.865	20.475
7/8-20UNEF	20	1.27	2A	GO	22.192	21.351	20.803
7/8-20UNEF	20	1.27	2A	NO GO	22.192	21.251	20.98
15/16-20UNEF	20	1.27	2A	GO	23.777	22.936	22.388
15/16-20UNEF	20	1.27	2A	NO GO	23.777	22.833	22.563
1-8UNC	8	3.18	2A	GO	25.349	23.266	21.895
1-8UNC	8	3.18	2A	NO GO	25.349	23.109	22.426
1-12UNF	12	2.12	2A	GO	25.354	23.965	23.048
1-12UNF	12	2.12	2A	NO GO	25.354	23.826	23.373
1-20UNEF	20	1.27	2A	GO	25.364	24.524	23.975
1-20UNEF	20	1.27	2A	NO GO	25.364	24.421	24.15
1 1/16-18UNEF	18	1.41	2A	GO	26.952	26.02	25.41
1 1/16-18UNEF	18	1.41	2A	NO GO	26.952	25.912	25.611
1 1/8-7UNC	7	3.63	2A	GO	28.519	26.142	24.572
1 1/8-7UNC	7	3.63	2A	NO GO	28.519	25.974	25.194
1 1/8-12UNF	12	2.12	2A	GO	28.529	27.14	26.223
1 1/8-12UNF	12	2.12	2A	NO GO	28.529	26.999	26.546
1 1/8-18UNEF	18	1.41	2A	GO	28.539	27.607	26.998
1 1/8-18UNEF	18	1.41	2A	NO GO	28.539	27.499	27.198
1 3/16-18UNEF	18	1.41	2A	GO	30.124	29.192	28.583
1 3/16-18UNEF	18	1.41	2A	NO GO	30.124	29.079	28.778
1 1/4-7UNC	7	3.63	2A	GO	31.694	29.317	27.747
1 1/4-7UNC	7	3.63	2A	NO GO	31.694	29.144	28.364
1 1/4-12UNF	12	2.12	2A	GO	31.702	30.312	29.395
1 1/4-12UNF	12	2.12	2A	NO GO	31.702	30.166	29.713
1 1/4-18UNEF	18	1.41	2A	GO	31.712	30.78	30.17
1 1/4-18UNEF	18	1.41	2A	NO GO	31.712	30.667	30.366

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.