Snorkel A38E Parts And Service Manual page 104

Fastener Torque Chart – Metric System
Capscrew
In-LBS
Size Dry
M4 - 0.7 27
M5 - 0.8 55
M6 - 1.0 93
M8 - 1.25 228
M8 - 1.0 240
M10 - 1.5
M10 - 1.25
M12 - 1.75
M12 - 1.25
M14 - 2.0
M14 - 1.5
M16 - 2.0
M16 - 1.5
M18 - 2.5
M18 - 1.5
M20 - 2.5
M20 - 1.5
M22 - 2.5
M22 - 1.5
M24 - 3.0
M24 - 2.0
M27 - 3.0
M27 - 2.0
M30 - 3.5
M30 - 3.0
M30 - 2.0
Torque chart information:
Consult manufacturers' specific recommendations, when available.
y
The chart may be used with both coarse and fine thread fasteners lightly lubricated.
y
Increase torque by 20% when multiple tapered tooth (shake proof) lock washers are used.
y
Foot/pound equivalent may be obtained by dividing by 12.
y
Inch/pound equivalent may be obtained by multiplying by 12.
y
Newton/meter equivalent may be obtained by multiplying inch/pound by 0.1130.
y
Newton/meter equivalent may be obtained by multiplying foot/pound by 1.3558.
y
A38E
Grade 8.8
In-LBS FT-LBS FT-LBS
Lubed Dry Lubed
20
41
70
168 19 14
180 20 15
37 28
39 30
65 49
71 53
103 77
114 85
162 122
173 129
222 167
317 236
350 262
428 321
546 409
594 446
796 597
863 645
1084 811
1121 841
1202 900
Grade 10.9
Clamp In-LBS In-LBS
Load (lb) Dry Lubed
861 36 24
1,394 72 60
1,971 132 96
3,591 312 228
3,844 336 252
5,693
6,008
8,273
9,037
11,285
12,263
15,404
16,388
19,423
24,042
26,695
30,651
34,642
37,676
45,039
58,785
55,054
56,908
60,932
FT-LBS FT-LBS Clamp
Dry Lubed Load (lb)
1,173
1,895
2,686
4,889
5,232
51 38 7,744
54 41 8,171
89 66 11,257
96 72 12,297
140 107 15,354
155 114 16,691
221 166 20,963
236 177 22,311
235 176
428 321 32,720
479 358 36,316
452 339
745 557 47,141
811 605 51,277
1,084 811 61,292
1,173 848 66,226
1,475 1106 74,915
1,527 1143 77,444
1,630 1224 82,917
Rev D
Maintenance – 17