SAFETY, OPERATORS & MAINTENANCE MANUAL
en-82
14
TORQUES
14.1 TORQUES
FINE PITCH METRIC THREADS
Dia
(mm)
Grade
4.6
Grade
4.8
Grade
8.8
Grade
10.9
Grade
12.9
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
6
0
0
0
0
0
8
12
16
32
45
54
10
24
31
63
88
106
12
42
57
113
159
191
14
67
90
179
252
302
16
103
137
274
385
462
20
209
279
557
783
940
22
281
375
750
1055
1266
24
354
472
944
1327
1593
27
514
686
1371
1928
2314
30
715
954
1908
2683
3219
33
964
1286
2572
3616
4340
36
1196
1594
3189
4484
5381
UNF THREADS
Dia (in)
Grade
A
Grade
S
Grade
T
Grade
V
Grade
X
(lbf. ft)
(lbf. ft)
(lbf. ft)
(lbf. ft)
(lbf. ft)
1/4
3.8
10.4
11.3
14.3
17.3
5/16
7.7
20.8
22.5
28.5
34.5
3/8
13.9
37.7
40.7
51.6
62.5
7/16
21.9
59.5
64.2
81.4
98.6
1/2
33.7
91.5
98.7
125
152
9/16
48.2
131
141
179
217
5/8
67.4
183
197
250
303
3/4
118
319
344
437
529
7/8
188
509
550
697
645
1
279
757
817
1036
1255
1 1/8
405
1099
1186
1504
1823
1 1/4
563
1529
1650
2093
2535
1 3/8
759
2061
2224
2821
3418
UNC THREADS
Dia (in)
Grade
A
Grade
S
Grade
T
Grade
V
Grade
X
(lbf. ft)
(lbf. ft)
(lbf. ft)
(lbf. ft)
(lbf. ft)
1/4
3.4
9.2
9.9
12.6
15.2
5/16
7
18.9
20.4
25.8
31.3
3/8
12.3
33.5
36.1
45.8
55.5
7/16
19.7
53.5
57.8
73.2
88.7
1/2
30.1
81.6
88
112
135
9/16
43.3
117
127
161
195
5/8
59.8
162
175
222
269
3/4
106
288
310
394
477
7/8
171
464
500
635
769
1
256
695
749
950
1152
1 1/8
363
984
1062
1347
1632
1 1/4
511
1387
1497
1899
2300
1 3/8
670
1820
1963
2490
3017
COARSE PITCH METRIC THREADS
Dia
(mm)
Grade
4.6
Grade
4.8
Grade
8.8
Grade
10.9
Grade
12.9
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
6
5
6
12
17
21
8
11
15
30
42
51
10
22
30
59
84
100
12
39
52
104
146
175
14
62
82
165
232
278
16
96
129
257
362
434
20
188
251
502
706
847
22
256
341
683
960
1152
24
325
434
868
1220
1464
27
476
635
1269
1785
2142
30
646
862
1723
2424
2908
33
822
1097
2193
3084
3701
36
1129
1506
3012
4235
5082
Summary of Contents for HR3300T
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