Torque - Fasteners - Norwood Kwik-Till HSD2500 Operator's Manual

Torque – Fasteners
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.
Bolt Head
Identification
(See Note Below.)
Bolt Size
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
NOTE: Bolt head identification marks as per grade. Manufacturing marks will vary.
NOTE: Thick nuts must be used with Grade 8 bolts.
Grade 2
ft-lbs
ft-lbs
(Lubricated)*
3.6 2.7
7.4 5.5
13.1 9.8
20.9 15.7
31.9 23.9
46.1 34.5
63.6 47.7
113 85
182 136
273 204
386 290
409 545
536 715
949 711
7 - SPECIFICATIONS
Grade 5
ft-lbs
(Lubricated)*
8.5
17.4
30.9
49.4
75.4
108.7
150.1
267
429
644
794
1121
1469
1950
7-5
Grade 8 (See Note Below)
ft-lbs
ft-lbs
6.3 11.9
13.1 24.6
23.2 43.6
37.1 69.8
56.5 106.4
81.6 153.5
112.6 211.9
200 376
322 606
483 909
596 1288
840 1817
1102 2382
1462 3162
ft-lbs
(Lubricated)*
8.9
18.4
32.7
52.3
79.8
115.1
158.9
282
455
681
966
1363
1786
2371