MARYLAND METRICS
THREAD DATA CHARTS

METRIC THREAD -- Aerospace threads MJ

BOLT Figure 1   

Limit dimensions for 4h6h threads for bolts

Dimensions in millimetres

	Major diameter			Pitch diameter			Minor diameter
	d			d2			d3
Thread designation			Td			Td2			Td3
	max.	min.	(6h) a	max.	min.	(4h) a	max.	min.
MJ1,6 x 0,35-4h6h	1,600	1,515	0,085	1,373	1,333	0,04	1,196	1,135	0,061
MJ2 x 0,4-4h6h	2,000	1,905	0,095	1,740	1,698	0,042	1,538	1,472	0,066
MJ2,5 x 0,45-4h6h	2,5	2,4	0,1	2,208	2,163	0,045	1,980	1,908	0,072
MJ3 x 0,5-4h6h	3,000	2,894	0,106	2,675	2,627	0,048	2,423	2,345	0,078
MJ3,5 x 0,6-4h6h	3,500	3,375	0,125	3,110	3,057	0,053	2,807	2,718	0,089
MJ4 x 0,7-4h6h	4,00	3,86	0,14	3,545	3,489	0,056	3,192	3,094	0,098
MJ5 x 0,8-4h6h	5,00	4,85	0,15	4,48	4,42	0,06	4,076	3,968	0,108
MJ6 x 1-4h6h	6,00	5,82	0,18	5,350	5,279	0,071	4,845	4,713	0,132
MJ7 x 1-4h6h	7,00	6,82	0,18	6,350	6,279	0,071	5,845	5,713	0,132
MJ8 x 1-4h6h	8,00	7,82	0,18	7,350	7,279	0,071	6,845	6,713	0,132
MJ10 x 1,25-4h6h	10,000	9,788	0,212	9,188	9,113	0,075	8,557	8,406	0,151
MJ12 x 1,25-4h6h	12,000	11,788	0,212	11,188	11,103	0,085	10,557	10,396	0,161
MJ14 x 1,5-4h6h	14,000	13,764	0,236	13,026	12,936	0,09	12,268	12,087	0,181
MJ16 x 1,5-4h6h	16,000	15,764	0,236	15,026	14,936	0,09	14,268	14,087	0,181
MJ18 x 1,5-4h6h	18,000	17,764	0,236	17,026	16,936	0,09	16,268	16,087	0,181
MJ20 x 1,5-4h6h	20,000	19,764	0,236	19,026	18,936	0,09	18,268	18,087	0,181
MJ22 x 1,5-4h6h	22,000	21,764	0,236	21,026	20,936	0,09	20,268	20,087	0,181
MJ24 x 2-4h6h	24,00	23,72	0,28	22,701	22,595	0,106	21,691	21,464	0,227
MJ27 x 2-4h6h	27,00	26,72	0,28	25,701	25,595	0,106	24,691	24,464	0,227
MJ30 x 2-4h6h	30,00	29,72	0,28	28,701	28,595	0,106	27,691	27,464	0,227
MJ33 x 2-4h6h	33,00	32,72	0,28	31,701	31,595	0,106	30,691	30,464	0,227
MJ36 x 2-4h6h	36,00	35,72	0,28	34,701	34,595	0,106	33,691	33,464	0,227
MJ39 x 2-4h6h	39,00	38,72	0,28	37,701	37,595	0,106	36,691	36,464	0,227
a In accordance with ISO 965-1

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NUT Figure 2   

Limit dimensions of 4H6H threads for nuts of diameter MJ1,6 to MJ5
and limit dimensions of 4H5H threads for nuts of diameter MJ6 to MJ39	Dimensions in millimetres

	Major	Pitch diameter			Minor diameter
	D3 a	D2			D1
Thread designation				TD2			TD1
	max.	max.	min.	(4H) b	max.	min.	(6H) b	(5H) b
MJ1,6 x 0,35-4H6H	1,704	1,426	1,373	0,053	1,359	1,259	0,1
MJ2 x 0,4-4H6H	2,114	1,796	1,740	0,056	1,722	1,610	0,112
MJ2,5 x 0,45-4H6H	2,625	2,268	2,208	0,06	2,187	2,062	0,125
MJ3 x 0,5-4H6H	3,135	2,738	2,675	0,063	2,653	2,513	0,14
MJ3,5 x 0,6-4H6H	3,658	3,181	3,110	0,071	3,075	2,915	0,16
MJ4 x 0,7-4H6H	4,176	3,620	3,545	0,075	3,498	3,318	0,18
MJ5 x 0,8-4H6H	5,195	4,56	4,48	0,08	4,421	4,221	0,2
MJ6 x 1-4H5H	6,239	5,445	5,350	0,095	5,216	5,026		0,19
MJ7 x 1-4H5H	7,239	6,445	6,350	0,095	6,216	6,026		0,19
MJ8 x 1-4H5H	8,239	7,445	7,350	0,095	7,216	7,026		0,19
MJ10 x 1,25-4H5H	10,28	9,288	9,188	0,1	8,994	8,782		0,212
MJ12 x 1,25-4H5H	12,292	11,300	11,188	0,112	10,994	10,782		0,212
MJ14 x 1,5-4H5H	14,335	13,144	13,026	0,118	12,775	12,539		0,236
MJ16 x 1,5-4H5H	16,335	15,144	15,026	0,118	14,775	14,539		0,236
MJ18 x 1,5-4H5H	18,335	17,144	17,026	0,118	16,775	16,539		0,236
MJ20 x 1,5-4H5H	20,335	19,144	19,026	0,118	18,775	18,539		0,236
MJ22 x 1,5-4H5H	22,335	21,144	21,026	0,118	20,775	20,539		0,236
MJ24 x 2-4H5H	24,429	22,841	22,701	0,14	22,351	22,051		0,3
MJ27 x 2-4H5H	27,429	25,841	25,701	0,14	25,351	25,051		0,3
MJ30 x 2-4H5H	30,429	28,841	28,701	0,14	28,351	28,051		0,3
MJ33 x 2-4H5H	33,429	31,841	31,701	0,14	31,351	31,051		0,3
MJ36 x 2-4H5H	36,429	34,841	34,701	0,14	34,351	34,051		0,3
MJ39 x 2-4H5H	39,429	37,841	37,701	0,14	37,351	37,051		0,3

a D3 min. is not specified. However, it shall be greater than D (see Figure 2).
b In accordance with ISO 965-1					filnam:mj6.xls ver gg05e

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