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Tel: +38 067 452 0765

Comparison table of inch threads

Nominal diameter	BSW (W)	UNC	UNF	UNEF	BSF	Thread diameter		Nominal diameter	BSP (G)	Thread diameter
Inch	TPI	TPI	TPI	TPI	TPI	mm		Inch	TPI	mm
No. 0	-	-	80	-	-	1,520		G 1/8"	28	9,728
No. 1	-	64	72	-	-	1,850		G 1/4"	19	13,157
No. 2	-	56	64	-	-	2,180		G 3/8"	19	16,662
No. 3	-	48	56	-	-	2,520		G 1/2"	14	20,955
No. 4	-	40	48	-	-	2,850		G 5/8"	14	22,911
No. 5	-	40	44	-	-	3,170		G 3/4"	14	26,441
No. 6	-	32	40	-	-	3,500		G 7/8"	14	30,201
No. 8	-	32	36	-	-	4,160		G 1"	11	33,249
No. 10	-	24	32	-	-	4,830		G 1 1/8"	11	37,897
No. 12	-	24	28	32	-	5,490		G 1 1/4"	11	41,910
1/16"	60	-	-	-	-	1,587		G 1 3/8"	11	44,323
3/32"	48	-	-	-	-	2,381		G 1 1/2"	11	47,803
1/8"	40	-	-	-	-	3,175		G 1 3/4"	11	53,746
5/32"	32	-	-			3,969		G 2"	11	59,614
3/16"	24	-	-	-	32	4,762		G 2 1/4"	11	65,710
7/32"	24	-	-	-	28	5,556		G 2 1/2"	11	75,184
1/4"	20	20	28	32	26	6,350		G 2 3/4"	11	81,534
5/16"	18	18	24	32	22	7,938		G 3"	11	87,884
3/8"	16	16	24	32	20	9,525		G 3 1/4"	11	93,980
7/16"	14	14	20	28	18	11,113		G 3 1/2"	11	100,330
1/2"	12	13	20	28	16	12,700		G 3 3/4"	11	106,680
9/16"	12	12	18	24	16	14,288		G 4"	11	113,030
5/8"	11	11	18	24	14	15,876
11/16"	-	-	-	24	14	17,463
3/4"	10	10	16	20	12	19,051
13/16"	-	-	-	20	12	20,638
7/8"	9	9	14	20	11	22,226
15/16"	-	-	-	20	11	23,813
1"	8	8	12	20	10	25,401
11/16"	-	-	-	18	-	26,988
11/8"	7	7	12	18	9	28,576
13/16"	-	-	-	18	-	30,163
11/4"	7	7	12	18	9	31,751
15/16"	-	-	-	18	-	33,338
13/8"	6	6	12	18	8	34,926
17/16"	-	-	-	18	-	36,512
11/2"	6	6	12	1	8	38,101
15/8"	5	5	-	18	8	41,277
13/4"	5	5	-	18	7	44,452
17/8"	4,5	4,5	-	18	-	47,627
2"	4,5	4,5	-	18	7	50,802
2 1/4"	4	4,5	-	-	-	57,152
2 1/2"	4	4	-	-	-	63,502
2 3/4"	3,5	4	-	-	-	69,853
3"	3,5	4	-	-	-	76,203