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No Series American Threads 200

No Series American Threads

Number series fastener Threads

Threaded fasteners, bolts, nuts, screws and fastenings in No

UNIFIED THREADS

	d	TPI	P	major diameter	effective diameter	minor diameter external threads	minor diameter internal threads
UNC
	No.1	64	0.0156	0.0730	0.0629	0.0538	0.0561
	No.2	56	0.0179	0.0860	0.0744	0.0641	0.0667
	No.3	48	0.0208	0.0990	0.0855	0.0734	0.0764
	No.4	40	0.0250	0.1120	0.0958	0.0813	0.0849
	No.5	40	0.0250	0.1250	0.1088	0.0943	0.0979
	No.6	32	0.0313	0.1380	0.1177	0.0997	0.1042
	No.8	32	0.0313	0.1640	0.1437	0.1257	0.1302
	No.10	24	0.0417	0.1900	0.1629	0.1389	0.1449
	No.12	24	0.0417	0.2160	0.1889	0.1649	0.1709

UNF	d	TPI	P	major diameter	effective diameter	minor diameter external threads	minor diameter internal threads
	No.0	80	0.0125	0.0600	0.0519	0.0447	0.0465
	No.1	72	0.0139	0.0730	0.0640	0.0560	0.0580
	No.2	64	0.0156	0.0860	0.0759	0.0668	0.0691
	No.3	56	0.0179	0.0990	0.0874	0.0771	0.0797
	No.4	48	0.0208	0.1120	0.0985	0.0864	0.0894
	No.5	44	0.0227	0.1250	0.1102	0.0971	0.1004
	No.6	40	0.0250	0.1380	0.1218	0.1073	0.1190
	No.8	36	0.0278	0.1640	0.1460	0.1299	0.1339
	No.10	32	0.0313	0.1900	0.1697	0.1517	0.1562
	No.12	28	0.0357	0.2160	0.1928	0.1722	0.1773

NUMBER SERIES AMERICAN THREADS

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