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OM1012.2
Standard Charts and Tables
This manual provides dual dimensioning for most
specifications. U.S. standard units are specified first,
with metric (SI) units in parentheses. References
throughout the manual to standard torques or other
standard values will be to one of the following Charts
or Tables.
For values not shown in any of the charts or tables,
standard conversion factors for most commonly used
measurements are provided in TABLE X, page 1-13.
INDEX OF TABLES
TABLE
I . . . . . . . . . . . Standard Torque Chart 1-9
TABLE II . . Torque Conversions (ft.lbs -- N.m) 1-10
TABLE IIA . Torque Conversions (ft.lbs -- kg.m) 1-10
TABLE III . . . . . . . . Temperature Conversions 1-10
TABLE IV . . . . . JIC Swivel Nuts Torque Chart 1-11
TABLE V . . . . . . . . Pipe Thread Torque Chart 1-11
TABLE VI . . . . . . . . O-Ring Boss Torque Chart 1-11
TABLE VII . . . . O-Ring Face Seal Torque Chart 1-11
TABLE VIII . . Pressure Conversions (psi -- kPa) 1-12
TABLE IX . . Pressure Conversions (psi -- MPa) 1-12
TABLE X . . . Common Conversion Multipliers 1-13
GRADE 5
CAP-
TORQUE -- GRADE 5
SCREW
THREAD
ft. lbs.
kg.m
SIZE
1/4--20
7
0.97
1/4--28
8
1.11
5/16--18
15
2.07
5/16--24
16
2.21
3/8--16
25
3.46
3/8--24
30
4.15
7/16--14
40
5.5
7/16--20
45
6.2
1/2--13
65
9
1/2--20
70
9.7
9/16--12
90
12.4
9/16--18
95
13.1
5/8--11
125
17.3
5/8--18
135
18.7
3/4--10
220
30.4
STANDARD CHARTS AND TABLES
TABLE I
STANDARD TORQUE CHART
SAE HEX HEAD CAPSCREW AND NUT ASSEMBLY
(LUBRICATED THREADS)
TOLERANCES
TORQUE -- GRADE 8
N.m
ft. lbs.
kg.m
N.m
9.5
10
1.38
13.6
10.8
11
1.52
14.9
20.3
21
2.90
28
22
22
3.04
30
34
35
4.84
47
41
40
5.5
54
54
58
8.0
79
61
62
8.57
84
88
90
12.4
122
95
95
13.1
129
122
125
17.3
169
129
135
18.7
183
169
175
24.2
237
183
190
26.2
258
298
310
42.8
420
1 ft. lbs. = 0.138 kg.m = 1.356 N.m
Effect Of Special Lubricants On Fasteners And
Standard Torque Values
Haulpak Division does NOT recommend the use of
special "friction-reducing" lubricants such as, "Copper
Coat", "Never Seize", and other similar products on the
threads of standard fasteners where "standard torque"
values are applied. The use of special "friction-reduc-
ing" lubricants will significantly alter the clamping force
being applied to fasteners during the tightening proc-
ess. If special "friction-reducing" lubricants are used
with the "Standard Torque" values listed below in Table
I (and most Haulpak service manuals), excessive
stress and possible breakage of the fasteners may
result.
Table I specifies "Lubricated Threads" for the Standard
Torque values listed; however, unless instructions spe-
cifically recommend otherwise, these standard
torque values are to be used with simple lithium
base chassis grease (multi-purpose EP NLGI) or a
rust- preventive grease (see list, page 1-13) on the
threads.
Standard Torque values are not to be used when
"Turn-of-the-Nut" tightening procedures are rec-
ommended.
±
10%
TORQUE -- GRADE 5
CAPSCREW
THREAD
ft. lbs.
kg.m
SIZE
3/4--16
235
32.5
7/8--9
350
48.4
7/8--14
375
51.9
1.0--8
525
72.6
1.0--12
560
77.4
1.0--14
570
78.8
1 1/8--7
650
89.9
1 1/8--12
700
96.8
1 1/4--7
910
125.9
1 1/4--12
975
134.8
1 3/8--6
1200
166
1 3/8--12
1310
181
1 1/2--6
1580
219
1 1/2--12
1700
235
Introduction - Section 1
Page 1-9
GRADE 8
TORQUE -- GRADE 8
N.m
ft. lbs.
kg.m
N.m
319
335
46.3
454
475
500
69.2
678
508
530
73.3
719
712
750
103.7
1017
759
790
109.3
1071
773
800
110.6
1085
881
1050
145
1424
949
1140
158
1546
1234
1480
205
2007
1322
1580
219
2142
1627
1940
268
2630
1776
2120
293
2874
2142
2560
354
3471
2305
2770
383
3756
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