Fastener Identification; Bolt Markings And Torque - Metric - Jeep Wrangler 1997 Manual

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INTRODUCTION 5
GENERAL INFORMATION (~ontinued)
Bolt Head Markings
Bolt Markings and Torque - Metric
FASTENER IDENTIFICATION
Commercial Steel Class
8.8 10.9
12 .9
l ~~
llhlll
~
8 .s 10 .9
12 .9
Body
Size Torque Torque
Torque
Diam . Cast Iron Aluminum
Cast Iron Aluminum
Cast Iron Aluminum
mm Nam ft-Ib Nam ft-lb Nam ft-Ib
Nam ft-Ib Nam
ft-Ib Nam ft-Ib
6 9 5 7 ',4
14 9 11 7
14 9 11
7
7 14 9 11 ',7 18
14 14 11
23 18 18
14
8 25 18 18
ll4 32 23 25
18 36 27
28 21
10 40 30
30 5 60 45 45
35 70 50
55 40
12
70
55
55
0 105 75 80 60
125 95
100 75
14 115 85 90 15 160 120
125 95 195
145 150 110
16 180 130 140 1 0
240 175 190 135
290 210 220 165
18 230 170 180 1 5 320
240 250 185
400 290 310
230
Bolt Markings and Torque Values - U .S. Customary
SAE Grade Number 5 8
Bolt Head Markings
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These are all SAE Grade 5 (3) line i
Y
Bolt Torque - Grade 5 Bolt
Bolt Torque - Grade 8 Bolt
Body Size Cast Iron ' ' ,
Aluminum Cast Iron
Aluminum
Nam #-I4 Nam
ft-Ib Nam ft-Ib
Nam ft-Ib
11,4 -20 9
1
8
6 15
1 1 12 9
-28
12
0
9 7 18
13 14 10
5/16 -18 20 16 12
30 22
24 18
-24 23 1
1,
19 14 33
24 25 19
3/8 -16 40
3 25 20 55
40 40 30
-24 40 3
35 25 60
45 45 35
7/16 -14 60
4 45 35 90
65 65 50
-20 65 5 55 40
95 70 75
55
1/2 -13 95 70 75 55
130 95
100 75
-20 100 7 80 60
150 110
120 90
9/16 -12 135 10 110 80
190 140
150 110
-18 150 11 115 85
210 155
170 125
5/8 -11 180 13, 1 150
110 255
190 205 150
-18 210 15
160 120 290
215 230
170
3/4 -10 325
240 255 190 460
340 365
270
-16 365
270 285 210
515 380 410
300
7/8 -9 490 360
380 280 745
550 600
440
-14 530 390 420 310
825 610
660 490
1 -8 720 53(~ 570
420 1100 820
890 660
-14 800 590 650 480
1200 890
960 710