SECTION 1 - GENERAL SPECIFICATIONS
1-8
31215808
SAE Fastener Torque Chart (Continued)
Values for Zinc Yellow Chromate Fasteners (Ref 4150707)
SAE GRADE 8 (HEX HD) BOLTS & GRADE 8 NUTS*
Size
TPI
Bolt Dia
Tensile Stress
Area
Clamp Load
Torque
(Dry or Loctite® 263)
K=0.20
Torque
(Loctite® 242™ or 271™ or
Vibra-TITE™
111 or 140)
K=0.18
Torque
(Loctite® 262™
or
Vibra-TITE™
131)
K=0.15
In
Sq In
LB
IN-LB
[N.m]
IN-LB
[N.m]
IN-LB
[N.m]
4
40
0.1120
0.00604
48
0.1120
0.00661
6
32
0.1380
0.00909
40
0.1380
0.01015
8
32
0.1640
0.01400
36
0.1640
0.01474
1320
43
5
10
24
0.1900
0.01750
1580
60
7
32
0.1900
0.02000
1800
68
8
1/4
20
0.2500
0.0318
2860
143
16
129
15
28
0.2500
0.0364
3280
164
19
148
17
In
Sq In
LB
FT-LB
[N.m]
FT-LB
[N.m]
FT-LB
[N.m]
5/16
18
0.3125
0.0524
4720
25
35
20
25
20
25
24
0.3125
0.0580
5220
25
35
25
35
20
25
3/8
16
0.3750
0.0775
7000
45
60
40
55
35
50
24
0.3750
0.0878
7900
50
70
45
60
35
50
7/16
14
0.4375
0.1063
9550
70
95
65
90
50
70
20
0.4375
0.1187
10700
80
110
70
95
60
80
1/2
13
0.5000
0.1419
12750
105
145
95
130
80
110
20
0.5000
0.1599
14400
120
165
110
150
90
120
9/16
12
0.5625
0.1820
16400
155
210
140
190
115
155
18
0.5625
0.2030
18250
170
230
155
210
130
175
5/8
11
0.6250
0.2260
20350
210
285
190
260
160
220
18
0.6250
0.2560
23000
240
325
215
290
180
245
3/4
10
0.7500
0.3340
30100
375
510
340
460
280
380
16
0.7500
0.3730
33600
420
570
380
515
315
430
7/8
9
0.8750
0.4620
41600
605
825
545
740
455
620
14
0.8750
0.5090
45800
670
910
600
815
500
680
1
8
1.0000
0.6060
51500
860
1170
770
1045
645
875
12
1.0000
0.6630
59700
995
1355
895
1215
745
1015
1 1/8
7
1.1250
0.7630
68700
1290
1755
1160
1580
965
1310
12
1.1250
0.8560
77000
1445
1965
1300
1770
1085
1475
1 1/4
7
1.2500
0.9690
87200
1815
2470
1635
2225
1365
1855
12
1.2500
1.0730
96600
2015
2740
1810
2460
1510
2055
1 3/8
6
1.3750
1.1550
104000
2385
3245
2145
2915
1785
2430
12
1.3750
1.3150
118100
2705
3680
2435
3310
2030
2760
1 1/2
6
1.5000
1.4050
126500
3165
4305
2845
3870
2370
3225
12
1.5000
1.5800
142200
3555
4835
3200
4350
2665
3625
NOTES:
1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
5000059K
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
3. * ASSEMBLY USES HARDENED WASHER
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