Bolt Torque Chart - J&M 525-14W Operator's Manual

Always tighten hardware to these values unless a different torque or tightening procedure is listed for 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 for SAE hardware and Metric for Metric hardware.
Make sure fastener threads are clean and you start thread engagement properly.
All torque values are given to specifications used on hardware defined by SAE J1701 & J1701M (JUL 96)
SAE SERIES
TORQUE
A
CHART
A
Wrench
Diameter
Size
(Inches)
1/4 7/16"
1/2"
5/16
9/16"
3/8
7/16 5/8"
1/2 3/4"
9/16 13/16"
5/8 15/16"
3/4
1-1/8"
7/8 1-5/16"
1 1-1/2"
METRIC SERIES
TORQUE
A
CHART
Diameter
&
Wrench
(Millimeters)
Size
Thread Pitch
6 x 1.0 10 mm
8 x 1.25 13 mm
10 x 1.5 16 mm
12.1.75 18 mm
14 x 2.0 21 mm
16 x 2.0 24 mm
18 x 2.5 27 mm
20 x 2.5 30 mm
22 x 2.5 34 mm
24 x 3.0 36 mm
30 x 3.0 46 mm
Standard 3/4" wheel studs and nuts should be tightened to torque 500 Ft.-Lbs. During initial operation of the grain cart
and then checked for proper torque after every 10 hours of use. Failure to do so may damage wheel nut seats. Once
seats are damaged, it will become impossible to keep nuts tight. Standard 22mm studs with 900/60R32 tires should be
tightened to torque 600 Ft.-Lbs.
General Information

BOLT TORQUE CHART

SAE Grade 2
(No Dashes)
SAE 2
LBS.-FT.
6
12
23
36
55
78
110
192
306
467
8.8
Metric
Grade 8.8
COARSE THREAD
MARKING ON THREAD
Metric 8.8
8 6
20 15
39 29
68 50
109 80
169 125
234 172
323
330 244
457
451 332
623
571 421
790
1175 867
1626
TIGHTENING WHEEL NUTS
SAE Bolt Head
Identi cation
3 Radial Dashes
MARKING ON HEAD
N-m LBS.-FT.
8 10
17 19
31 35
48 55
75 85
106 121
149 170
261 297
416 474
634 722
Metric Bolt Head
Identi cation
Metric 10.9
11 8 8
27 20 21
54 40 41
94 70 75
151 111 118
234 173 181
239 263
337 367
460 495
583 623
1199 1258
4
SAE Grade 5
SAE 5
LBS.-FT.
N-m
13
26
47
75
115
164
230
403
642
979
1020
10.9
Metric
Grade 10.9
FINE THREAD
MARKING ON THREAD
Metric 8.8 Metric 10.9
11
6
29
16
57
30
103
55
163
87
250
133
363
194
507
270
365 684
861
459
1740
928
SAE Grade 8
6 Radial Dashes
SAE 8
N-m
18
14
27 37
49 67
106
78
120 163
232
171
325
240
569
420
907
669
1383
Diameter
&
(Millimeters)
Thread Pitch
6 x 1.0
8
8 x 1.0
22
10 x 1.25
42
12.1.25
76
14 x 1.5
120
16 x 1.5
184
18 x 1.5
268
20 x 1.5
374
22 x 1.5
505
24 x 2.0
635
30 x 2.0
1283