3torque specifications, 1sae bolt torque specifications, Torque specifications – MacDon R85 Rotary Disc 16 Foot Pull-Type User Manual
Page 136: Sae bolt torque specifications, 3 torque specifications
8.3 Torque Specifications
The following tables give correct torque values for various bolts, cap screws, and hydraulic fittings.
• Tighten all bolts to the torques specified in chart (unless otherwise noted throughout this manual).
• Replace hardware with the same strength and grade bolt.
• Check tightness of bolts periodically, using the tables below as a guide.
• Torque categories for bolts and cap screws are identified by their head markings.
8.3.1 SAE Bolt Torque Specifications
Torque values shown in this table are valid for non-greased,
or non-oiled threads and heads. Therefore, do NOT grease
or oil bolts or cap screws unless otherwise specified in
this manual.
Table 8.1 SAE Grade 5 Bolt and Grade 5 Free Spinning
Torque (ft·lbf)
(*in·lbf)
Torque (N·m)
Nominal
size (A)
Min.
Max.
Min.
Max.
1/4-20
*106
*117
11.9
13.2
5/16-18
*218
*241
24.6
27.1
3/8-16
32
36
44
48
7/16-14
52
57
70
77
1/2-13
79
87
106
118
9/16-12
114
126
153
170
5/8-11
157
173
212
234
3/4-10
281
311
380
420
7/8-9
449
496
606
669
1-8
611
676
825
912
Figure 8.4
A - Nominal size
B - SAE-8
C - SAE-5
D - SAE-2
169456
126
Rev. D