螺栓及螺母最大扭矩推荐值
(仅供参考)
|
强度区分
|
4.8
|
6.8
|
8.8
|
12.9
|
|
最小破断强度
|
392Mpa
|
588Mpa
|
784Mpa
|
1176Mpa
|
|
材质
|
一般构造用钢
|
机械制造用钢
|
鉻钼合金钢
|
镍鉻钼合金钢
|
|
螺栓
|
螺母
|
扭矩值
|
扭矩值
|
扭矩值
|
扭矩值
|
|
KGM
|
NM
|
KGM
|
NM
|
KGM
|
NM
|
KGM
|
NM
|
|
M14
|
22mm
|
7
|
69
|
10
|
98
|
14
|
137
|
23
|
225
|
|
M16
|
24mm
|
10
|
98
|
14
|
137
|
21
|
206
|
36
|
353
|
|
M18
|
27mm
|
14
|
137
|
21
|
206
|
29
|
284
|
49
|
480
|
|
M20
|
30mm
|
18
|
176
|
28
|
296
|
41
|
402
|
69
|
676
|
|
M22
|
32mm
|
23
|
225
|
34
|
333
|
55
|
539
|
93
|
911
|
|
M24
|
36mm
|
32
|
314
|
48
|
470
|
70
|
686
|
120
|
1176
|
|
M27
|
41mm
|
45
|
441
|
65
|
630
|
105
|
1029
|
180
|
1764
|
|
M30
|
46
|
60
|
588
|
90
|
882
|
125
|
1225
|
240
|
2352
|
|
M33
|
50mm
|
75
|
735
|
115
|
1127
|
150
|
1470
|
250
|
2450
|
|
M36
|
55mm
|
100
|
980
|
150
|
1470
|
180
|
1764
|
300
|
2940
|
|
M39
|
60mm
|
120
|
1176
|
180
|
1764
|
220
|
2156
|
370
|
3626
|
|
M42
|
65mm
|
155
|
1519
|
240
|
2352
|
280
|
2744
|
470
|
4606
|
|
M45
|
70mm
|
180
|
1764
|
280
|
2744
|
320
|
3136
|
550
|
5390
|
|
M48
|
75mm
|
230
|
2254
|
350
|
3430
|
400
|
3920
|
680
|
6664
|
|
M52
|
80mm
|
280
|
2744
|
420
|
4116
|
480
|
4704
|
850
|
8330
|
|
M56
|
85mm
|
360
|
3528
|
530
|
5194
|
610
|
5978
|
1050
|
10290
|
|
M60
|
90mm
|
410
|
4018
|
610
|
5978
|
790
|
7742
|
1350
|
13230
|
|
M64
|
95mm
|
510
|
4998
|
760
|
77448
|
900
|
8820
|
|
|
|
M68
|
100mm
|
580
|
5684
|
870
|
8526
|
1100
|
10780
|
|
|
|
M72
|
105mm
|
660
|
6468
|
1000
|
9800
|
1290
|
12642
|
|
|
|
M76
|
110mm
|
750
|
7350
|
1100
|
10780
|
1500
|
14700
|
|
|
|
M80
|
115mm
|
830
|
8134
|
1250
|
12250
|
1850
|
18130
|
|
|
|
M85
|
120mm
|
900
|
8820
|
1400
|
13720
|
2250
|
22050
|
|
|
|
M90
|
130
|
1080
|
10584
|
1650
|
16170
|
2500
|
24500
|
|
|
|
M100
|
145mm
|
1400
|
13720
|
2050
|
20090
|
|
|
|
|
|
M110
|
155mm
|
1670
|
16366
|
2550
|
24990
|
|
|
|
|
|
M120
|
175mm
|
2030
|
19894
|
3050
|
29890
|
|
|
|
|
以上是德国工业标准，表中扭矩值为螺栓达到屈服极限的70%时所测定.
建议锁紧力矩为:表中数据X(70-80)%.
例如:M48,8.8级螺栓,则锁紧力矩为:400X80%=320（Kg-m）
