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

ISO 9255 - 2008

Display drawing:

Code

MJ4

MJ5

MJ6

MJ7

MJ8

MJ10

MJ12

P	Pitch
d_s	Nominal Size
	before coating	max
		min
	coating(close)	max
		min
	coating(large)	max
		min
	Uncoated bolts(close)	max
		min
	Uncoated bolts(large)	max
		min
d₂	max
	min
d_k	min
d_c	max
d₁	max
	min
d₃	max
	min
c	min
k	max
	min
b	Thread(short)
	Thread(medium)
h₁	Thread(short)
	Thread(medium)
L₁
w	max
	min

0.7	0.8	1	1	1	1.25	1.25
4	5	6	7	8	10	12
3.97	4.97	5.97	6.967	7.967	9.967	11.964
3.955	4.955	5.955	6.952	7.952	9.952	11.949
3.99	4.99	5.99	6.987	7.987	9.987	11.984
3.965	4.965	5.965	6.962	7.962	9.962	11.959
4	5	6	7	8	10	12
3.88	4.88	5.88	6.85	7.85	9.85	11.82
3.99	4.99	5.99	6.987	7.987	9.987	11.984
3.978	4.978	5.978	6.972	7.972	9.972	11.966
4	5	6	7	8	10	12
3.88	4.88	5.88	6.85	7.85	9.85	11.82
-	3.7	4.6	5.4	5.7	7.2	8.5
-	3.2	4.1	4.9	5.2	6.7	8
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
1.24	1.64	1.64	2.04	2.04	2.54	2.54
1.1	1.5	1.5	1.9	1.9	2.4	2.4
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
7.5	9	10	11	11.5	14.5	16
10	12	14	15	16.5	20.5	22.5
2.5	3	3	4	4	5.5	6
4	4.5	5.5	5.5	6	7.5	8
3.5	4.5	5.2	5.9	6.3	7.7	8.8
-	2.9	3.2	3.7	4.1	5.1	6
-	2.5	2.8	3.3	3.7	4.7	5.6

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