Torque chart (sae fasteners - sheet 2 of 7) -12, Sae grade 8 (hex hd) bolts & grade 8 nuts – JLG 660SJ Service Manual User Manual
Page 28
SECTION 1 - SPECIFICATIONS
1-12
– JLG Lift –
3121298
Figure 1-3. Torque Chart (SAE Fasteners - Sheet 2 of 7)
Size
TPI
Bolt Dia
Tensile
Stress Area
Clamp Load
In
Sq In
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
10
24
0.1900
0.01750
32
0.1900
0.02000
1/4
20
0.2500
0.0318
28
0.2500
0.0364
In
Sq In
5/16
18
0.3125
0.0524
24
0.3125
0.0580
3/8
16
0.3750
0.0775
24
0.3750
0.0878
7/16
14
0.4375
0.1063
20
0.4375
0.1187
1/2
13
0.5000
0.1419
20
0.5000
0.1599
9/16
12
0.5625
0.1820
18
0.5625
0.2030
5/8
11
0.6250
0.2260
18
0.6250
0.2560
3/4
10
0.7500
0.3340
16
0.7500
0.3730
7/8
9
0.8750
0.4620
14
0.8750
0.5090
1
8
1.0000
0.6060
12
1.0000
0.6630
1 1/8
7
1.1250
0.7630
12
1.1250
0.8560
1 1/4
7
1.2500
0.9690
12
1.2500
1.0730
1 3/8
6
1.3750
1.1550
12
1.3750
1.3150
1 1/2
6
1.5000
1.4050
12
1.5000
1.5800
NO. 5000059 REV. J
3. * ASSEMBLY USES HARDENED WASHER
NOTES: 1. THESE TORQUE VALUES DO NOT APPLY TO CADMIUM PLATED FASTENERS
2. ALL TORQUE VALUES ARE STATIC TORQUE MEASURED PER STANDARD AUDIT METHODS TOLERANCE = ±10%
LB
IN-LB
[N.m]
IN-LB
[N.m]
IN-LB
[N.m]
1320
43
5
1580
60
7
1800
68
8
2860
143
16
129
15
3280
164
19
148
17
LB
FT-LB
[N.m]
FT-LB [N.m]
FT-LB
[N.m
4720
25
35
20
25
20
25
5220
25
35
25
35
20
25
7000
45
60
40
55
35
50
7900
50
70
45
60
35
50
9550
70
95
65
90
50
70
10700
80
110
70
95
60
80
12750
105
145
95
130
80
110
14400
120
165
110
150
90
120
16400
155
210
140
190
115
155
18250
170
230
155
210
130
175
20350
210
285
190
260
160
220
23000
240
325
215
290
180
245
30100
375
510
340
460
280
380
33600
420
570
380
515
315
430
41600
605
825
545
740
455
620
45800
670
910
600
815
500
680
51500
860
1170
770
1045
645
875
59700
995
1355
895
1215
745
1015
68700
1290
1755
1160
1580
965
1310
77000
1445
1965
1300
1770
1085
1475
87200
1815
2470
1635
2225
1365
1855
96600
2015
2740
1810
2460
1510
2055
104000
2385
3245
2145
2915
1785
2430
118100
2705
3680
2435
3310
2030
2760
126500
3165
4305
2845
3870
2370
3225
142200
3555
4835
3200
4350
2665
3625
Torque
(Loctite® 242
TM
or 271
TM
OR Vibra-TITE
TM
111 or
140) K=.18
Torque
(Loctite® 262
TM
or Vibra-
TITE
TM
131)
K=0.15
SAE GRADE 8 (HEX HD) BOLTS & GRADE 8 NUTS*
Torque
(Dry or Loctite® 263)
K= 0.20