Terex TS14G, Maintenance Manual

Page: 372 / 376

Section 300-0080
Miscellaneous - Standard Bolt and Nut Torque Specifications
SM 1238 2-98
2
RECOMMENDED MAXIMUM TORQUES (IMPERIAL) ± 10%
TABLE145
Size
SAE Symbol
GM 260-M Steel
(SAE GR 2)
SAE Symbol
GM 280-M Steel
(SAE GR 5)
SAE Symbol
GM 290-M Steel
(SAE GR 7)
SAE Symbol
GM 300-M Steel
(SAE GR 8)
12 Point Cap
Screws
Nm lbf ft Nm lbf ft Nm lbf ft Nm lbf ft Nm lbf ft
1.12 - 7
1.12 - 12
1.25 - 7
1.25 - 12
1.38 - 6
1.38 - 12
1.50 - 6
1.50 - 8
1.50 - 12
1.75 - 5
1.75 - 12
1.88 - 8
1.88 - 12
2.00 - 4.5
2.00 - 8
2.00 - 12
2.25 - 4.5
2.25 - 8
2.25 - 12
2.50 - 12 366
407
515
569
664
759
881
936
990
-
-
-
-
-
-
-
-
-
-
-
270
300
380
420
490
560
650
690
730
-
-
-
-
-
-
-
-
-
-
-
800
902
1 132
1 254
1 478
1 688
1 966
2 088
2 217
-
-
-
-
-
-
-
-
-
-
-
590
665
835
925
1 090
1 245
1 450
1 540
1 635
-
-
-
-
-
-
-
-
-
-
-
1 132
1 274
1 600
1 776
2 095
2 393
2 786
2 962
3 145
4 393
5 091
6 006
6 304
6 623
7 342
7 687
9 701
10 629
11 050
15 280
835
940
1 180
1 310
1 545
1 765
2 055
2 185
2 320
3 240
3 755
4 430
4 650
4 885
5 415
5 670
7 155
7 840
8 150
11 270
1 302
1 451
1 830
2 034
2 400
2 739
3 186
3 390
3 593
5 016
5 830
6 874
7 213
7 565
8 406
8 786
11 090
12 148
12 636
17 463
960
1 075
1 350
1 500
1 770
2 020
2 350
2 500
2 650
3 700
4 300
5 070
5 320
5 580
6 200
6 480
8 180
8 960
9 320
12 880
1 447
1 624
2 043
2 267
2 676
3 056
3 556
3 781
4 010
5 604
6 497
7 664
8 048
8 448
9 367
9 811
12 377
13 566
14 102
19 500
1 067
1 198
1 507
1 672
1 974
2 254
2 623
2 789
2 958
4 133
4 792
5 653
5 936
6 231
6 909
7 236
9 129
10 006
10 401
14 383
Types of Steel Rockwell Hardness Range Applicable Torque Values SAE Bolt Head Symbols
Plain Low Carbon
(eg. SAE 1018 or 1020)
Rockwell "B" 85-100 GM 260-M
Plain Medium Carbon
(eg. SAE 1035, 1038 & 1045)
Rockwell "C" 19-30 GM 280-M
Medium Carbon Alloy
(eg. SAE 4140, 8642 & 5157)
Rockwell "C" 28-34 GM 290-M
Medium Carbon Alloy
(eg. SAE 4140, 8642 & 5147)
Rockwell "C" 32-38 GM 300-M
Note: Where materials other than GM Standards are used, refer to the conversion table below.
Courtesy of Machine.Market