Hitachi 6HK1 Workshop Manual page 23

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Strength
category
Bolt head
Hex bolt
shape
: 5.6 to 11.2 N・m { 0.6
M6 x 1
to 1.1 kgf・m / 50 to 99
lb・in }
: 13.4 to 25.7 N・m { 1.4
M8 x 1.25
to 2.6 kgf・m / 10 to 19
lb・ft }
: 31.3 to 52.5 N・m { 3.2
M10 x 1.25
to 5.4 kgf・m / 23 to 39
lb・ft }
: 31.3 to 51.4 N・m { 3.2
*M10 x 1.5
to 5.2 kgf・m / 23 to 38
lb・ft }
: 69.3 to 104.0 N・m
M12 x 1.25
{ 7.1 to 10.6 kgf・m / 51
to 77 lb・ft }
: 64.8 to 96.1 N・m { 6.6
*M12 x 1.75
to 9.8 kgf・m / 48 to 71
lb・ft }
: 106.2 to 158.8 N・m
M14 x 1.5
{ 10.8 to 16.2 kgf・m / 78
to 117 lb・ft }
: 100.6 to 149.8 N・m
*M14 x 2
{ 10.3 to 15.3 kgf・m / 74
to 110 lb・ft }
: 154.3 to 232.5 N・m
M16 x 1.5
{ 15.7 to 23.7 kgf・m /
114 to 171 lb・ft }
: 147.6 to 221.4 N・m
*M16 x 2
{ 15.1 to 22.6 kgf・m /
109 to 163 lb・ft }
: 222.5 to 334.3 N・m
M18 x 1.5
{ 22.7 to 34.1 kgf・m /
164 to 247 lb・ft }
: 223.6 to 335.4 N・m
*M18 x 2.5
{ 22.8 to 34.2 kgf・m /
165 to 247 lb・ft }
: 307.4 to 461.7 N・m
M20 x 1.5
{ 31.3 to 47.1 kgf・m /
227 to 341 lb・ft }
: 284.0 to 472.1 N・m
*M20 x 2.5
{ 29.0 to 48.1 kgf・m /
209 to 348 lb・ft }
: 413.6 to 620.5 N・m
M22 x 1.5
{ 42.2 to 63.3 kgf・m /
305 to 458 lb・ft }
: 385.7 to 578.0 N・m
*M22 x 2.5
{ 39.3 to 58.9 kgf・m /
284 to 426 lb・ft }
Service Information Guide (All models) 14A-17
8.8
Flange bolt
: 6.6 to 12.2 N・m { 0.7
to 1.2 kgf・m / 58 to 108
lb・in }
: 15.3 to 28.4 N・m { 1.6
to 2.9 kgf・m / 11 to 21
lb・ft }
: 35.4 to 58.9 N・m { 3.6
to 6.0 kgf・m / 26 to 43
lb・ft }
: 34.5 to 57.5 N・m { 3.5
to 5.9 kgf・m / 25 to 42
lb・ft }
: 77.7 to 116.5 N・m
{ 7.9 to 11.9 kgf・m / 57
to 86 lb・ft }
: 71.4 to 107.2 N・m
{ 7.3 to 10.9 kgf・m / 53
to 79 lb・ft }
: 114.9 to 172.3 N・m
{ 11.7 to 17.6 kgf・m / 85
to 127 lb・ft }
: 108.2 to 162.2 N・m
{ 11.0 to 16.5 kgf・m / 80
to 120 lb・ft }
: 171.1 to 256.7 N・m
{ 17.4 to 26.2 kgf・m /
126 to 189 lb・ft }
: 162.5 to 243.8 N・m
{ 16.6 to 24.9 kgf・m /
120 to 180 lb・ft }
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Hex bolt
-
: 16.7 to 30.4 N・m { 1.7
to 3.1 kgf・m / 12 to 22
lb・ft }
: 37.3 to 62.8 N・m { 3.8
to 6.4 kgf・m / 28 to 46
lb・ft }
: 36.3 to 59.8 N・m { 3.7
to 6.1 kgf・m / 27 to 44
lb・ft }
: 75.5 to 113.8 N・m
{ 7.7 to 11.6 kgf・m / 56
to 84 lb・ft }
: 71.6 to 106.9 N・m
{ 7.3 to 10.9 kgf・m / 53
to 79 lb・ft }
: 113.8 to 170.6 N・m
{ 11.6 to 17.4 kgf・m / 84
to 126 lb・ft }
: 106.9 to 160.0 N・m
{ 10.9 to 16.3 kgf・m / 79
to 118 lb・ft }
: 160.0 to 240.3 N・m
{ 16.3 to 24.5 kgf・m /
118 to 177 lb・ft }
: 153.0 to 229.5 N・m
{ 15.6 to 23.4 kgf・m /
113 to 169 lb・ft }
: 229.5 to 345.2 N・m
{ 23.4 to 35.2 kgf・m /
169 to 255 lb・ft }
: 230.5 to 346.2 N・m
{ 23.5 to 35.3 kgf・m /
170 to 255 lb・ft }
: 293.2 to 440.3 N・m
{ 29.9 to 44.9 kgf・m /
216 to 325 lb・ft }
: 293.2 to 440.3 N・m
{ 29.9 to 44.9 kgf・m /
216 to 325 lb・ft }
: 424.6 to 636.5 N・m
{ 43.3 to 64.9 kgf・m /
313 to 469 lb・ft }
: 394.2 to 592.3 N・m
{ 40.2 to 60.4 kgf・m /
291 to 437 lb・ft }
9.8
9T
Flange bolt
-
: 18.1 to 33.6 N・m { 1.8
to 3.4 kgf・m / 13 to 25
lb・ft }
: 42.3 to 70.5 N・m { 4.3
to 7.2 kgf・m / 31 to 52
lb・ft }
: 40.1 to 66.9 N・m { 4.1
to 6.8 kgf・m / 30 to 49
lb・ft }
: 85.0 to 127.5 N・m
{ 8.7 to 13.0 kgf・m / 63
to 94 lb・ft }
: 79.5 to 119.2 N・m
{ 8.1 to 12.2 kgf・m / 59
to 88 lb・ft }
: 123.4 to 185.1 N・m
{ 12.6 to 18.9 kgf・m / 91
to 137 lb・ft }
: 115.5 to 173.3 N・m
{ 11.8 to 17.7 kgf・m / 85
to 128 lb・ft }
: 176.9 to 265.3 N・m
{ 18.0 to 27.1 kgf・m /
130 to 196 lb・ft }
: 168.5 to 252.7 N・m
{ 17.2 to 25.8 kgf・m /
124 to 186 lb・ft }
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