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MINIMUM
TYPE
TENSILE
FASTENER
STRENGTH
SAE 2
74,000
STEEL
PSI
SAE 5
120,000
STEEL
PSI
SAE 7
133,000
STEEL
PSI
SAE 8
150,000
STEEL
PSI
SAE 8
150,000
STEEL
PSI
SOCKET
212,000
SET
PSI
SCREW
STUDS
in-lbs.
*Torque values in
MINIMUM
TYPE
TENSILE
FASTENER
STRENGTH
SAE 2
5,202
2
STEEL
kg/cm
SAE 5
8,436
2
STEEL
kg/cm
SAE 7
9,350
2
STEEL
kg/cm
SAE 8
10,545
2
STEEL
kg/cm
SAE 8
10,545
2
STEEL
kg/cm
SOCKET
14,904
2
SET
kg/cm
SCREW
STUDS
(ft-lbs) x 1.356 =
foot-pounds
Newton-meters
www.PlanDeGraissage.org
Table B-2. English Torque Values
MATERIAL
# (number)
2
3
4
5
LOW
CARBON
MEDIUM
CARBON HEAT
TREAT
MEDIUM
CARBON
ALLOY
MEDIUM
CARBON
ALLOY
MEDIUM
CARBON
ALLOY
HIGH CARBON
QUENCHED
TEMPERED
Use SAE 2, 5 and 8 values when grade is known, with nut of sufficient strength.
Table B-3. Metric Torque Values
MATERIAL
# (number)
2
3
4
5
LOW
CARBON
MEDIUM
CARBON HEAT
TREAT
MEDIUM
CARBON
ALLOY
MEDIUM
CARBON
ALLOY
MEDIUM
CARBON
ALLOY
HIGH CARBON
QUENCHED
TEMPERED
Use SAE 2, 5 and 8 values when grade is known, with nut of sufficient strength.
(Nm)
BODY SIZE OR OUTSIDE DIAMETER
6
8
10
1/4
5/16
3/8
6
12
20
14*
22*
10
19
33
13
25
44
14
29
47
14
29
47
9*
16*
30*
70*
140*
18
BODY SIZE OR OUTSIDE DIAMETER
6
8
10
6.4
7.9
9.5
8.3
16.6
27.7
1.6
2.5
13.8
26.3
45.6
18.0
34.6
60.8
19.4
40.1
65.0
107.9 164.6 233.7 318.1 525.5 829.8 1220.0
19.4
40.1
65.0
107.9 164.6 233.7 318.1 525.5 829.8 1220.0
1.0
1.8
3.4
8.1
16.1
24.9
inch-pounds
in. (inches)
7/16
1/2
9/16
5/8
3/4
7/8
32
47
69
96
155
206
54
78
114
154
257
382
71
110
154
215
360
570
78
119
169
230
380
600
78
119
169
230
380
600
29
43
63
100
146
mm (millimeters)
11.1
12.7
14.3
15.9
19.1
22.2
44.3
65.0
95.4
132.8 214.4 283.5
74.7
107.9 157.7 213.0 355.4 528.3
98.2
152.1 213.0 297.3 497.9 788.3 1161.7
40.1
59.5
87.1
138.3 201.9
(in-lbs) x 0.113 =
Newton-meters
1
310
587
840
900
900
25.4
428.7
811.8
(Nm)
B-3
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