3 608 878 300
Tightening Technology |
Bosch Rexroth AG
63
System 350
| 3 608 878 300/2019-03
4.1.2.6
Clamping force table according to VDI 2230
The following table lists the guide values for mounting clamp forces (F
M
) and tightening torques (T
A
) in
relation to a friction factor (
G
) for headless bolts with metric coarse-pitch threads according to
DIN ISO 262 and head dimensions for hexagon bolts according to DIN EN ISO 4014 to 4018, fillister
head bolts according to DIN EN ISO 4762, and “center” holes according to DIN EN 20 273.
Table 4–1: Clamp force table
Dimens
ion
Property
class
Mounting clamp force F
M
in kN for
G
Tightening torque T
A
in Nm for
G
0.08
0.10
0.12
0.14
0.16
0.20
0.24
0.08
0.10
0.12
0.14
0.16
0.20
0.24
M4
8.8
4.6
4.5
4.4
4.3
4.2
3.9
3.7
2.3
2.6
3.0
3.3
3.6
4.1
4.5
10.9
6.8
6.7
6.5
6.3
6.1
5.7
5.4
3.3
3.9
4.8
4.6
5.3
6.0
6.6
12.9
8.0
7.8
7.6
7.4
7.1
6.7
6.3
3.9
4.5
5.1
5.6
6.2
7.0
7.8
M5
8.8
7.6
7.4
7.2
7.0
6.8
6.4
6.0
4.4
5.2
5.9
6.5
7.1
8.1
9.0
10.9
11.1
10.8
10.6
10.3
10.0
9.4
8.8
6.5
7.6
8.6
9.5
10.4
11.9
13.2
12.9
13.0
12.7
12.4
12.0
11.7
11.0
10.3
7.6
8.9
10.0
11.2
12.2
14.0
15.5
M6
8.8
10.7
10.4
10.2
9.9
9.6
9.0
8.4
7.7
9.0
10.1
11.3
12.3
14.1
15.6
10.9
15.7
15.3
14.9
14.5
14.1
13.2
12.4
11.3
13.2
14.9
16.5
18.0
20.7
22.9
12.9
18.4
17.9
17.5
17.0
16.5
15.5
14.5
13.2
15.4
17.4
19.3
21.1
24.2
26.8
M7
8.8
15.5
15.1
14.8
14.4
14.0
13.1
12.3
12.6
14.8
16.8
18.7
20.5
23.6
26.2
10.9
22.7
22.5
21.7
21.1
20.5
19.3
18.1
18.5
21.7
24.7
27.5
30.1
34.7
38.5
12.9
26.6
26.0
25.4
24.7
24.0
22.6
21.1
21.6
25.4
28.9
32.2
35.2
40.6
45.1
M8
8.8
19.5
19.1
19.0
18.8
17.6
16.5
15.5
18.5
21.6
24.6
27.3
29.8
34.3
38.0
10.9
28.7
28.0
27.3
26.6
25.8
24.3
22.7
27.2
31.8
36.1
40.1
43.8
50.3
55.8
12.9
33.6
32.8
32.0
31.1
30.2
28.4
26.6
31.8
37.2
42.2
46.9
51.2
58.9
65.3
M10
8.8
31.0
30.3
29.6
28.8
27.9
26.3
24.7
36
43
48
54
59
68
75
10.9
45.6
44.5
43.4
42.2
41.0
38.6
36.2
53
63
71
79
87
100
110
12.9
53.3
52.1
50.8
49.4
48.0
45.2
42.4
62
73
83
93
101
116
129
M12
8.8
45.2
44.1
43.0
41.9
40.7
38.3
35.9
63
73
84
93
102
117
130
10.9
66.3
64.8
63.2
61.5
59.8
56.3
52.8
92
108
123
137
149
172
191
12.9
77.6
75.9
74.0
72.0
70.0
65.8
61.8
108
126
144
160
175
201
223
M14
8.8
62.0
60.6
59.1
57.5
55.9
52.6
49.3
100
117
133
148
162
187
207
10.9
91.0
88.9
86.7
84.4
82.1
77.2
72.5
146
172
195
218
238
274
304
12.9
106.5
104.1
101.5
98.8
96.0
90.4
84.8
171
201
229
255
279
321
356
M16
8.8
84.7
82.9
80.9
78.8
76.6
72.2
67.8
153
180
206
230
252
291
325
10.9
124.4
121.7
118.8
115.7
112.6
106.1
99.6
224
264
302
338
370
428
477
12.9
145.5
142.4
139.0
135.4
131.7
124.1
116.6
262
309
354
395
433
501
558
M18
8.8
107
104
102
99
96
91
85
220
259
295
329
360
415
462
10.9
152
149
145
141
137
129
121
314
369
421
469
513
592
657
12.9
178
174
170
165
160
151
142
367
432
492
549
601
692
769
M20
8.8
136
134
130
127
123
116
109
308
363
415
464
509
588
655
10.9
194
190
186
181
176
166
156
438
517
592
661
725
838
933
12.9
227
223
217
212
206
194
182
513
605
692
773
848
980
1092
M22
8.8
170
166
162
158
154
145
137
417
495
567
634
697
808
901
10.9
242
237
231
225
219
207
194
595
704
807
904
993
1151
1284
12.9
283
277
271
264
257
242
228
698
824
945
1057
1162
1347
1502
M24
8.8
196
192
188
183
178
168
157
529
625
714
798
875
1011
1126
10.9
280
274
267
260
253
239
224
754
890
1017
1136
1246
1440
1604
12.9
327
320
313
305
296
279
262
882
1041
1190
1329
1458
1685
1877
M27
8.8
257
252
246
240
234
220
207
772
915
1050
1176
1292
1498
1672
10.9
367
359
351
342
333
314
295
1100
1304
1496
1674
1840
2134
2381
12.9
429
420
410
400
389
367
345
1287
1526
1750
1959
2153
2497
2787
Summary of Contents for Rexroth Tightening System 350
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