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Aerospace - Bolts, Normal Spline Head, Normal or Pitch Diameter Shank, Long Length MJ Threads, Metallic Material, Coated or Uncoated, Strength Classes Less Than or Equal to 1100 MPa

ISO 9254 - 1993

Display drawing:

Thread Size

MJ4

MJ5

MJ6

MJ7

MJ8

MJ10

MJ12

Code
P	Pitch
d_s	Normal	max
		min
	Pitch diameter	Nominal Size
		max
		min
d₂	max
	min=nominal size
d₃	Nominal Size
	max
	min
d_k	min
d_c	max
d₁	max
	min=nominal size
c	min
k	max=nominal size
	min
L₂	max
b
L	Nominal Size	tol. ±0.3
L₁
R₁	max
	min
s	max
	min=nominal size
T	min
wrenching dash number

040	050	060	070	080	100	120
0.7	0.8	1	1	1	1.25	1.25
4	5	6	7	8	10	12
3.88	4.88	5.88	6.85	7.85	9.85	11.82
3.54	4.48	5.35	6.35	7.35	9.19	11.19
3.67	4.61	5.48	6.48	7.48	9.32	11.32
3.41	4.35	5.22	6.22	7.22	9.06	11.06
/	3.7	4.6	5.4	5.7	7.2	8.5
/	3.2	4.1	4.9	5.2	6.7	8
3	3.4	4.2	5.2	6.2	7.9	9.8
3	3.9	4.7	5.7	6.7	8.4	10.3
2.5	2.9	3.7	4.7	5.7	7.4	9.3
6	7	8	9	10	12	14
8.3	9.1	10.6	12.1	13.6	16.7	19.9
1.14	1.14	1.54	1.54	1.54	1.74	1.74
1	1	1.4	1.4	1.4	1.6	1.6
0.8	1	1.2	1.4	1.6	2	2.4
5.5	6.5	7.5	8.2	8.6	10.1	11.4
5.02	5.92	6.92	7.62	8.02	9.4	10.7
2	4	4	4	4	6	6
14	16	18	20	22	26	30
16 ~ 56	20 ~ 70	22 ~ 84	24 ~ 98	26 ~ 112	32 ~ 140	36 ~ 168
3.5	4.5	5.2	5.9	6.3	7.7	8.8
0.4	0.5	0.7	0.7	0.7	0.8	0.9
0.2	0.3	0.5	0.5	0.5	0.6	0.6
/	2.9	3.2	3.7	4.1	5.1	6
/	2.5	2.8	3.3	3.7	4.7	5.6
2.5	2.8	3.5	3.8	3.9	4.2	4.5
060	070	080	090	100	120	140

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