:: Specifications	:: Camera-mount	:: ISO Fine Thread	:: ISO Coarse Thread
:: PG Thread	:: S. & H. Thread	:: Edison Thread	:: Valve Thread
:: Sewing-machine Thread	:: Cycle Thread	:: C. E. I. Thread	:: Löwenherz Thread
:: Bodmer Thread	:: VDI Thread	:: French Thread	:: Knuckle Thread DIN 405
:: Knuckle Thread DIN 20400	:: Buttress Fine Thread	:: Buttress Coarse Thread	:: Trapezoidal Fine Thread
:: Trapezoidal Coarse Thread	:: NPT Thread (USA)	:: NPTF Thread (USA)	:: UNC Thread (USA)
:: UNEF Thread	:: UNF Thread	:: 8-UN Thread (USA)	:: 12-UN Thread (USA)
::16-UN Thread (USA)	:: Sharp V Thread (USA)	::BA British Association (GB)	:: BSF Whitworth Fine Thread(GB)
:: BSW Whitworth Coarse Thread(GB)	:: BSP Whitworth Pipe Thread(GB)	:: BSPT Tapered Whit - worth Pipe Thread(GB)	:: Conversion Inch-Fractals to mm

UNF Threads ANSI B1.1

Specifications of International Thread Standards

UNF - Unified National Fine Thread. Similar to UNC. UNC and UNF threads are the choices for the customary screws and nuts.

Nominal Diameter	Major Diameter Inch	Major Diameter mm	Tapping Drill Size mm	TPI	Pitch mm
N 0 - 80 UNF	0,060	1,524	1,25	80	0,317
N 1 - 72 UNF	0,073	1,854	1,55	72	0,353
N 2 - 64 UNF	0,068	2,184	1,90	64	0,397
N 3 - 56 UNF	0,099	2,515	2,15	56	0,453
N 4 - 48 UNF	0,112	2,845	2,40	48	0,529
N 5 - 44 UNF	0,125	3,175	2,70	44	0,577
N 6 - 40 UNF	0,138	3,505	2,95	40	0,635
N 8 - 36 UNF	0,164	4,166	3,50	36	0,705
N 10 - 32 UNF	0,190	4,826	4,10	32	0,794
N 12 - 28 UNF	0,216	5,486	4,70	28	0,907
1/4" - 28 UNF	0,250	6,350	5,50	28	0,907
5/16" - 24 UNF	0,313	7,938	6,90	24	1,058
3/8" - 24 UNF	0,375	9,525	8,50	24	1,058
7/16" - 20 UNF	0,438	11,112	9,90	20	1,270
1/2" - 20 UNF	0,500	12,700	11,50	20	1,270
9/16" - 18 UNF	0,563	14,288	12,90	18	1,411
5/8" - 18 UNF	0,625	15,875	14,50	18	1,411
3/4" - 16 UNF	0,750	19,050	17,50	16	1,587
7/8" - 14 UNF	0,875	22,225	20,40	14	1,814
1" - 12 UNF	1,000	25,400	23,25	12	2,117
1 1/8" - 12 UNF	1,125	28,575	26,50	12	2,117
1 1/4" - 12 UNF	1,250	31,750	29,50	12	2,117
1 3/8" - 12 UNF	1,375	43,925	32,75	12	2,117
1 1/2" - 12 UNF	1,500	38,100	36,00	12	2,117

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