Torque Chart - pronovost P-740 Operator's & Parts Manual

TORQUE CHART

11
Thread UNC and UNF
Bolt size
Inches
1/4
5/16
3/8
7/16 11.11
1/2 12.70
9/16 14.29
5/8 15.88
3/4 19.05
7/8 22.23
1 25.40
1 1/8 25.58
1 1/4 31.75
1 3/8 34.93
1 1/2 38.10
* Thick nuts must be used with grade 8 bolts.
M6 UNC
M8 UNC
M10 UNC
M12 UNC
M14 UNC
M16 UNC
M18 UNC
M20 UNC
M8 UNF
M10 UNF
M12 UNF
M14 UNF
M16 UNF
M18 UNF
M20 UNF
Use the above torques when special torque is not given.
NOTE: These values apply to fasteners as received from supplier, dry, or when lubricated with normal engine oil. They do
not apply if extreme pressure lubricants are used.
TORQUE SPECIFICATION TABLE
Grade 2
Torque
Pound feet Newton meters
mm min. max. min.
6.35 5 6
7.94 10 12 13.6
9.53 20 23 27.1
30 35 40.7
45 52 61.0
65 75 88.1
95 105 128.7
150 185 203.3
160 200 216.8
250 300 338.8
- -
- -
- -
- -
Grade 4T
Torque
Pound feet Newton meters
min. max. min.
1.00 3.6 5.8
1.25 7.2 14
1.5 20 25 27.1
1.75 28 34 37.9
2.0 49 56 66.4
2.0 67 77 90.8
2.0 88 100 119.2
2.5 108 130 146.3
1.0 12 17 16.3
1.25 20 29 27.1
1.25 31 41
1.5 52 64 70.5
1.5 69 83 93.5
1.5 100 117 136
1.5 132 150 178.9
Grade 5
Torque
Pound feet
max. min. max.
6.8 8.13 9 11
16.3 17 20.5
31.2 35 42
47.4 54 64
70.5 80 96
101.6 110 132
142.3 150 180
250.7 270 324
271.0 400 480
406.5 580 696
- - 800 880 1084.8 1193.3
- - 1120 1240 1518.7 1681.4
- - 1460 1680 1979.8 2278.1
- - 1940 2200 2630.6 2983.2
Grade 7T
Torque
Pound feet
max. min. max.
4.9 7.9 5.8 9.4
9.8 19 17 22
33.9 34 40
46.1 51 59
75.9 81 93
104.3 116 130
136 150 168
176.2 186 205
23 19 27
39.3 35 47
42 55.6 56 68
86.7 90 106
112.5 120 138
158.5 177 199
203.3 206 242
- 50 -
Grade 8*
Newton meters Pound feet
min. max. min.
12.2 14.9 12
23.1 27.8 24
47.5 57.0 45
73.2 86.8 70
108.5 130.2 110
149.2 179.0 160
203.4 244.1 220
366.1 439.3 380
542.4 650.9 600
786.5 943.8 900
1280
1820
2380
3160
Grade 8T
Newton meters Pound feet
min. max. min.
7.9 12.7 7.2
23 29.8 20
46.1 54.2 38
69.1 79.9 57
109.8 126 96
157.2 176.2 129
203.3 227.6 175
252 277.8 213
25.7 36.6 22
47.4 63.7 40
75.9 92.1 62
122 143.6 107
162.6 187 140
239.8 269.6 202
279.1 327.9 246
Torque
Newton meters
max. min. max.
15 16.3 30.3
29 32.5 39.3
54 61.0 73.2
84 94.9 113.9
132 149.2 179.0
192 217.0 260.4
264 298.3 358.0
456 515.3 618.3
720 813.6 976.3
1080 1220.4 1464.5
1440 1735.7 1952.6
2000 2467.9 2712.0
2720 3227.3 3688.3
3560 4285.0 4827.4
Torque
Newton meters
max. min. max.
10 9.8 13.6
26 27.1 35.2
46 51.5 62.3
66 77.2 89.4
109 130.1 147.7
145 174.8 196.5
194 237.1 262.9
249 288.6 337.4
31 29.8 42
52 54.2 70.5
75 84 101.6
124 145 168
158 189.7 214.1
231 273.7 313
289 333.3 391.6