TM 9-2815-250-24&P
APPENDIX E
TORQUE VALUES FOR THREADED FASTENERS
Paragraph
Page
Number
Paragraph Title
Number
E-1
General.....................................................................................................................................
E-1
E-2
Torque Limits ............................................................................................................................
E-1
E-3
How To Use Torque Table..........................................................................................................
E-1
E-4
Tightening Metal Fasteners ........................................................................................................
E-3
E-5
Fastener Size and Thread Pattern ..............................................................................................
E-4
E-6
Fastener Grade .........................................................................................................................
E-5
E-1.
GENERAL.
This section provides general torque limits for screws used on the Diesel Engine Assembly, Hatz 2 G 40. Special torque
limits are indicated in the maintenance procedures for applicable components. The general torque limits given in this
appendix shall be used when specific torque limits are not indicated in the maintenance procedure. These general torque
limits cannot be applied to screws that retain rubber components. The rubber components will be damaged before the
correct torque limit is reached. If a special torque limit is not given in the maintenance instructions, tighten the screw or
nut until it touches the metal bracket, then tighten it one more turn.
E-2.
TORQUE LIMITS.
Table E-1 (p. E-2) lists dry torque limits. Dry torque limits are used on screws that do not have lubricants applied to
threads. Table E-2 (p. E-3) lists wet torque limits. Wet torque limits are used on screws that have high-pressure
lubricants applied to threads.
E-3.
HOW TO USE TORQUE TABLE.
1.
Measure the diameter of the screw to be
installed.
2.
Count the number of threads per inch or use a
pitch gage.
3.
Under the heading SIZE (Tables E-1 and E-2),
look down the left-hand column until the
diameter of the screw to be installed is found
(there will usually be two lines beginning with the
same size).
4.
In the second column under SIZE, find the
number of threads per inch that matches the
number of threads counted in step 2.
E-1
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