Bolt Torque Reference - Kioti WD1260 Operator's Manual

Unless otherwise specified, tighten hardware to the following standards.
M6 UNC 1.00
M8 UNC 1.25
M10 UNC 1.50
M12 UNC 1.75
M14 UNC 2.00
M16 UNC 2.00
M18 UNC 2.00
M20 UNC 2.50 108
M8 UNF 1.00
M10 UNF 1.25
M12 UNF 1.25
M14 UNF 1.50
M16 UNF 1.50
M18 UNF 1.50 100
M20 UNF 1.50 132
Thread UNC and UNF Grade 2
Bolt Size
Pound Feet
Inches mm min
1/4 6.35 5
5/16 7.94 10
3/8 9.53 20
7/16 11.11 30
1/2 12.70 45
9/16 14.29 65
5/8 15.88 95
3/4 19.05 150
7/8 22.23 160
1 25.40 250
1 1/8 25.58 -
1 1/4 31.75 -
1 3/8 34.93 -
1 1/2 38.10 -
19.

BOLT TORQUE REFERENCE

Grade 4T
Torque
Pound Feet Newton meters
min max min
3.6 5.8 4.9
7.2 14 9.8
20 25 27.1
28 34 37.9
49 56 66.4
67 77 90.8
88 100 119.2
130 146.3
12 17 16.3
20 29 27.1
31 41 42
52 64 70.5
69 83 93.5
117 136
150 178.9
Torque
Newton meters
max min max
6 6.8 8.1
12 13.6 16.3
23 27.1 31.2
35 40.7 47.4
52 61.0 70.5
75 88.1 101.6
105 128.7 142.3
185 203.3 250.7
200 216.8 271.0
300 338.8 406.5
- - -
- - -
- - -
- - -
METRIC
Grade 7T
Torque
Pound Feet
max min max
7.9 5.8 9.4
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
55.6 56 68
86.7 90 106
112.5 120 138
158.5 177 199
203.3 206 242
SAE
Grade 5
Torque
Pound Feet
min max
9 11 12.2
17 20.5 23.1
35 42 47.5
54 64 73.2
80 96 108.5
110 132 149.2
150 180 203.4
270 324 366.1
400 480 542.4
580 696 786.5
800 880 1084.8
1120 1240 1518.7
1460 1680 1979.8
1940 2200 2630.6
51
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
Grade 8*
Newton meters Pound Feet
min max min
14.9 12
27.8 24
57.0 45
86.8 70
130.2 110
179.0 160
244.1 220
439.3 380
650.9 600
943.8 900
1193.3 1280
1681.4 1820
2278.1 2380
2983.2 3160
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 11.6
124 145 168
158 189.7 214.1
231 273.7 313
289 333.3 391.6
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