7 - SPECIFICATIONS
7-5
Society of Automotive Engineers (SAE) Fastener Torque
Use these torques, unless special torques are specified. Values are for Unified Coarse (UNC) and Unified Fine (UNF)
thread fasteners, plated or unplated, as received from supplier. Fasteners can be dry or lubricated with normal engine oil.
Values do not apply if graphite, molydisulphide or other extreme pressure lubricant is used.
* Use the torque values as shown, unless specified otherwise. Torque values specified as lubricated, are fasteners that
are to be assembled with threadlocker.
SAE Grade No.
Grade 2
Grade 5
Grade 8 (See Note Below)
Bolt Head
Identification
(See Note Below.)
Bolt Size
ft-lbs
ft-lbs
(Lubricated)*
ft-lbs
ft-lbs
(Lubricated)*
ft-lbs
ft-lbs
(Lubricated)*
1/4
3.6
2.7
8.5
6.3
11.9
8.9
5/16
7.4
5.5
17.4
13.1
24.6
18.4
3/8
13.1
9.8
30.9
23.2
43.6
32.7
7/16
20.9
15.7
49.4
37.1
69.8
52.3
1/2
31.9
23.9
75.4
56.5
106.4
79.8
9/16
46.1
34.5
108.7
81.6
153.5
115.1
5/8
63.6
47.7
150.1
112.6
211.9
158.9
3/4
113
85
267
200
376
282
7/8
182
136
429
322
606
455
1
273
204
644
483
909
681
1-1/8
386
290
794
596
1288
966
1-1/4
409
545
1121
840
1817
1363
1-3/8
536
715
1469
1102
2382
1786
1-1/2
949
711
1950
1462
3162
2371
NOTE:
Bolt head identification marks as per grade. Manufacturing marks will vary.
NOTE:
Thick nuts must be used with Grade 8 bolts.
Torque – Fasteners
Содержание Kwik-Till HSD2500
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