Threada  (d)
Nominal
stress
area
As, nomb mm2
                                
Property class
3.6
4.6
4.8
5.6
5.8
6.8
8.8
9.8
10.9
12.9
 
 
 
 
Minimum ultimate tensile load (As, nom x Rm,min),  N
M3
5.03
1660
2010
2110
2510
2620
3020
4020
4530
5230
6140
M3.5
6.78
2240
2710
2850
3390
3530
4070
5420
6100
7050
8270
M4
8.78
2900
3510
3690
4390
4570
5270
7020
7900
91130
10700
M5
14.2
4690
5680
5960
7100
7380
8520
11350
12800
14800
17300
M6
20.1
6630
8040
8440
10000
10400
12100
16100
18100
20900
24500
M7
28.9
9540
11600
12100
14400
15000
17300
23100
26000
30100
35300
M8
36.6
12100
14600
15400
18300
19000
22000
29200
32900
38100
44600
M10
58
19100
23200
24400
29000
30200
34800
46400
52200
60300
70800
M12
84.3
27800
33700
35400
42200
43800
50600
67400c
75900
87700
103000
M14
115
38000
46000
48300
57500
59800
69000
92000c
104000
120000
140000
M16
157
51800
62800
65900
78500
81600
94000
125000c
141000
163000
192000
M18
192
63400
76800
80600
96000
99800
115000
159000
/
200000
234000
M20
245
80800
98000
103000
122000
127000
147000
203000
/
255000
299000
M22
303
100000
121000
127000
152000
158000
182000
252000
/
315000
370000
M24
353
116000
141000
148000
176000
184000
212000
293000
/
367000
431000
M27
459
152000
184000
193000
230000
239000
275000
381000
/
477000
560000
M30
561
185000
224000
236000
280000
292000
337000
466000
/
583000
684000
M33
694
229000
278000
292000
347000
361000
416000
576000
/
722000
847000
M36
817
270000
327000
343000
408000
425000
490000
678000
/
850000
997000
M39
976
322000
390000
410000
488000
508000
586000
810000
/
1020000
1200000

a.Where no thread pitch is indicated in a thread designation, coarse pitch is specified. This is given in ISO 261 and ISO 262.
b.To calculate see As.
c.For structural bolting 70 000 N, 95 500 N and 130 000 N, respectively.


Tags: EN ISO 898-1 Minimum Ultimate Tensile Loads Metric Coarse Pitch Thread