UNIFIED THREAD RING GAUGES-FYOU GAUGES

Specification
Contact Info

Specification

Unified thread gauges are applied to examine threaded work pieces produced by American national standards as well as American federal standards. It conforms to ANSI/ASME B1.1 standard

Nominal dia		Pitch
Primary	Sccondary	UNC	UNF	UNEF	4UN	8UN	12UN	16UN	20UN	28UN	32UN
No. 0			80
	No. 1	64	72
No. 2		56	64
	No. 3	48	56
No. 4		40	48
No. 5		40	44
No. 6		32	40								UNC
No. 8		32	36								UNC
No. 10		24	32								UNF
	No. 12	24	28	32						UNF	UNEF

1/4		20	28	32					UNC	UNF	UNEF
5/16		18	24	32					20	28	UNEF
3/8		16	24	32				UNC	20	28	UNEF
7/16		14	20	28				16	UNF	UNEF	32
1/2		13	20	28				16	UNF	UNEF	32
9/16		12	18	24			UNC	16	20	28	32
5/8		11	18	24			12	16	20	28	32
	11/16			24			12	16	20	28	32
3/4		10	16	20			12	UNF	UNEF	28	32
	13/16			20			12	16	UNEF	28	32
7/8		9	14	20			12	16	UNEF	28	32
	15/16			20			12	16	UNEF	28	32

1		8	12	20		UNC	UNF	16	UNEF	28	32
	1 1/16			18		8	12	16	20	28
1 1/8		7	12	18		8	UNF	16	20	28
Nominal dia		Pitch
Primary	Sccondary	UNC	UNF	UNEF	4UN	8UN	12UN	16UN	20UN	28UN	32UN
	1 3/16			18		8	12	16	20	28
1 1/4		7	12	18		8	UNF	16	20	28
	1 5/16			18		8	12	16	20	28
1 3/8		6	12	18	UNC	8	UNF	16	20	28
	1 7/16			18	6	8	12	16	20	28
1 1/2		6	12	18	UNC	8	UNF	16	20	28
	1 9/16			18	6	8	12	16	20
1 5/8				18	6	8	12	16	20
	1 11/16			18	6	8	12	16	20
1 3/4		5			6	8	12	16	20
	1 13/16				6	8	12	16	20
1 7/8					6	8	12	16	20
	1 15/16				6	8	12	16	20

2		4 1/2			6	8	12	16	20
	2 1/8				6	8	12	16	20
2 1/4		4 1/2			6	8	12	16	20
	2 3/8				6	8	12	16	20
2 1/2		4		UNC	6	8	12	16	20
	2 5/8			4	6	8	12	16	20
2 3/4		4		UNC	6	8	12	16	20
	2 7/8			4	6	8	12	16	20

3		4		UNC	6	8	12	16	20
	3 1/8			4	6	8	12	16
3 1/4		4		UNC	6	8	12	16
	3 3/8			4	6	8	12	16
3 1/2		4		UNC	6	8	12	16
……
6				4	6	8	12	16

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