
0000WS65:99900663: 6-419921030
When using the torque data in the charts above, the following rules should be observed.
1. Bolt manufacturer’s particular specifications should be consulted when provided.
2. Flat washers of equal strength must be used.
3. All torque measurements are given in foot-pounds. To convert to inch-pounds, multiply by 12.
4. Torque values specified are for bolts with residual oils or no special lubricants applied. If special
lubricants of high stress ability, such as Never-Seez compound graphite and oil, molybdenum disulphite,
collodial copper or white lead are applied, multiply the torque values in the charts by the factor .90. The use of
Loctite does not affect the torque values listed above.
5. Torque values for socket-head capscrews are the same as for Grade 8 capscrews.
WARNING
Anytime a gear-bearing bolt is removed, it must be replaced with a new bolt of the identical grade and size. Once a
bolt has been torqued to 75% of its proof load and then removed, the torque coefficient may no longer be the same
as when the bolt was new thus giving indeterminate clamp loads after torquing. Failure to replace gear-bearing bolts
may result in bolt failure due to metal fatique causing serious injury or DEATH.
Figure F-2. TORQUE DATA CHART
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