LS tractor LB1300 - TORQUE TIGHTENING CHART

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TORQUE TIGHTENING CHART
Minimum hardware tightening torques
In foot pounds (Newton-meters) for normal assembly applications
Always tighten hardware to these values unless a different torque value or tightening procedure is listed
for a specific application.
Fasteners must always be replaced with the same grade as specified in the manual parts list.
Always use the proper tool for tightening hardware : SAE or SAE hardware and Metric for metric hardware.
Make sure fastener threads are clean and you start thread engagement properly.
Inch hardware
SAE Grade 2 SAE Grade 5 SAE Grade 8
(No dashes) (3 Radial dashes) (6 Radial dashes)
Diameter
(Inches)
Wrench
Size
Marking on head
SAE 2
SAE 5
SAE 8
lbs.-ft
N-m
lbs.-ft
N-m
lbs.-ft
N-m
1/4"
7/16"
6
8
10
13
14
18
5/16"
1/2"
12
17
19
26
27
37
3/8"
9/16"
23
31
35
47
49
67
7/16"
5/8"
36
48
55
75
78
106
1/2"
3/4"
55
75
85
115
120
163
9/16"
13/16"
78
106
121
164
171
232
5/8"
15/16"
110
149
170
230
240
325
3/4"
1-1/8"
192
261
297
403
420
569
7/8"
1-5/16"
306
416
474
642
669
907
1"
1-1/2"
467
634
722
979
1020
1383
Metric hardware
Metric Metric
Grade 8.8 Grade 10.9
Diameter &
thread pitch
(Millimeters)
Wrench
Size
Coarse thread
Fine thread
Diameter &
thread pitch
(Millimeters)
Marking on head
Marking on head
Metric 8.8
Metric 10.9
Metric 8.8
Metric 10.9
N-m
lbs.-ft
N-m
lbs.-ft
N-m
lbs.-ft
N-m
lbs.-ft
6 x 1.0
10mm
8
6
11
8
8
6
11
8
6 x 1.0
8 x 1.25
13mm
20
15
27
20
21
16
29
22
8 x 1.0
10 x 1.5
16mm
39
29
54
40
41
30
57
42
10 x 1.25
12 x 1.75
18mm
68
50
94
70
75
55
103
76
12 x 1.25
14 x 2.0
21mm
109
80
151
111
116
87
163
120
14 x 1.5
16 x 2.0
24mm
169
125
234
173
181
133
250
184
16 x 1.5
18 x 2.5
27mm
234
172
323
239
263
194
363
268
18 x 1.5
20 x 2.5
30mm
330
244
457
337
367
270
507
374
20 x 1.5
22 x 2.5
34mm
451
332
623
460
495
365
684
505
22 x 1.5
24 x 3.0
36mm
571
421
790
583
623
459
861
635
24 x 2.0
30 x 3.0
46mm
1175
867
1626
1199
1258
928
1740
1283
30 x 2.0
SAE Series
torque chart
SAE Bolt head
Identification
Metric Series
torque chart
Metric Bolt Head
Identification