Titan Implement 7000 Series - Bolt Torque Requirements

Titan Implement, LLC 29 7000 Series Disc Harrows
(423) 334-0012 January 2022
8.6 Bolt Torque Requirements
It is extremely important to apply and maintain proper
torque on all bolts. Use a torque wrench to assure
the proper amount of torque is being applied to the
fastener.
Start all bolts or nuts by hand to prevent cross
threading.
Torque gures indicated in the chart are used for
non-greased or non-oiled threads and heads unless
otherwise specied. Therefore, do not grease or oil
bolts or cap screws unless otherwise specied in this
manual. When using locking elements, increase torque
values by 5%.
The chart below gives correct torque values for various
bolts and cap screws. Tighten all bolts to the torque
specied in the chart unless otherwise noted. Check
tightness of bolts periodically, using the bolt torque
chart as a guide. Always replace hardware with the
same Grade bolt.
Bolt
Diameter
English Bolt Torque Specifications
Grade 2
No Marking
Grade 2
Grade 5
Grade 5
3 Radial Lines
Grade 8
Grade 8
6 Radial Lines
N·m ft.lbs. N·m ft.lbs. N·m ft.lbs.
1/4" 8 6 12 9 17 12
5/16" 13 10 25 19 36 27
3/8" 27 20 45 33 63 45
7/16" 41 30 72 53 100 75
1/2" 61 45 110 80 155 115
9/16" 95 60 155 115 220 165
5/8" 128 95 215 158 305 220
3/4" 225 165 390 290 540 398
7/8" 230 170 570 420 880 650
1" 345 225 850 630 1320 970
WARNING
OEM
OEM
EQUIPMENT FAILURE
The torque value for bolts and cap screws are
identied by their head markings. Replacing
higher “Grade” bolts (Grade 5) with lower Grade
bolts will lead to equipment failure and can result in
injury or death. Always use replacement bolts with
the same Grade markings as the removed bolt.