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

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

Size	T.P.I	Pitch	Class	Go/No Go	Major d	Pitch Diameter d 2	Minor Diameter d 1	Thread Length L 2	ToTal length L
1/2-20UNF	20	1.27	2B	GO	12.713	11.89	11.14	12	97
				NO GO	12.568	12.017	11.14	8
1/2-28UNEF	28	0.91	2B	GO	12.713	12.126	11.587	8	91
				NO GO	12.626	12.233	11.587	6
9/16-12UNC	12	2.12	2B	GO	14.303	12.929	11.692	18	120
				NO GO	14.003	13.086	11.692	12
9/16-18UNF	18	1.41	2B	GO	14.3	13.386	12.555	12	110
				NO GO	14.133	13.52	12.555	8
9/16-24UNEF	24	1.06	2B	GO	14.3	13.614	12.987	10	108
				NO GO	14.186	13.729	12.987	8
5/8-11UNC	11	2.31	2B	GO	15.89	14.392	13.043	20	124
				NO GO	15.56	14.559	13.043	14
5/8-18UNF	18	1.41	2B	GO	15.888	14.973	14.143	12	110
				NO GO	15.723	15.11	14.143	8
5/8-24UNEF	24	1.06	2B	GO	15.888	15.202	14.575	10	108
				NO GO	15.776	15.319	14.575	8
11/16-24UNEF	24	1.06	2B	GO	17.475	16.789	16.162	10	108
				NO GO	17.363	16.906	16.162	8
3/4-10UNC	10	2.54	2B	GO	19.065	17.414	15.933	20	140
				NO GO	18.694	17.595	15.933	16
3/4-16UNF	16	1.59	2B	GO	19.065	18.034	17.102	16	130
				NO GO	18.872	18.184	17.102	10
3/4-20UNEF	20	1.27	2B	GO	19.063	18.24	17.49	16	128
				NO GO	18.92	18.369	17.49	8
13/16-20UNEF	20	1.27	2B	GO	20.65	19.827	19.078	16	128
				NO GO	20.508	19.957	19.078	8
7/8-9UNC	9	2.82	2B	GO	22.243	20.406	18.76	24	144
				NO GO	21.821	20.599	18.76	16
7/8-14UNF	14	1.81	2B	GO	22.24	21.062	20.000	16	130
				NO GO	22.009	21.224	20.000	10
7/8-20UNEF	20	1.27	2B	GO	22.238	21.415	20.665	16	128
				NO GO	22.095	21.544	20.665	8
15/16-20UNEF	20	1.27	2B	GO	23.825	23.002	22.253	16	128
				NO GO	23.688	23.137	22.253	8
1-8UNC	8	3.18	2B	GO	25.418	23.358	21.504	28	150
				NO GO	24.935	23.561	21.504	18
1-12UNF	12	2.12	2B	GO	25.415	24.041	22.804	24	142
				NO GO	25.136	24.219	22.804	14
1-20UNEF	20	1.27	2B	GO	25.413	24.59	23.84	14	128
				NO GO	25.276	24.724	23.84	10
1 1/16-18UNEF	18	1.41	2B	GO	27	26.086	25.255	14	128
				NO GO	26.84	26.228	25.255	10
1 1/8-7UNC	7	3.63	2B	GO	28.593	26.238	24.122	32	172
				NO GO	28.029	26.457	24.122	20
1 1/8-12UNF	12	2.12	2B	GO	28.59	27.216	25.979	24	142
				NO GO	28.316	27.399	25.979	14
1 1/8-18UNEF	18	1.41	2B	GO	28.588	27.673	26.843	14	128
				NO GO	28.428	27.816	26.843	10
1 3/16-18UNEF	18	1.41	2B	GO	30.175	29.261	28.43	15	145
				NO GO	30.018	29.406	28.43	10
1 1/4-7UNC	7	3.63	2B	GO	31.768	29.413	27.297	32	172
				NO GO	31.209	29.637	27.297	20
1 1/4-12UNF	12	2.12	2B	GO	31.765	30.391	29.154	24	156
				NO GO	31.496	30.579	29.154	12
1 1/4-18UNEF	18	1.41	2B	GO	31.763	30.848	30.018	15	145
				NO GO	31.605	30.993	30.018	10

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.