| Size Recommended Torque | Grade 2 Bronze | 7/8′′ 129 178 | 1′′† 188 240 | * Sizes from #4 to #10 are in lb-in. Sizes from 1/4′′ up are in lb-ft. † Fine thread figures are for 1′′-14. Grade 2, 5, and 8 values are for slightly lubricated bolts. |
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What is the torque on a 10.9 bolt?
| Bolt Diameter (mm) Recommended Torque (Nm) | Class 8.8 Class 10.9 | 8 30 40 | 10 55 75 | 12 100 135 |
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How much torque can a bolt take?
| Size Recommended Torque | Grade 2 Bronze | 7/8′′ 129 178 | 1′′† 188 240 | * Sizes from #4 to #10 are in lb-in. Sizes from 1/4′′ up are in lb-ft. † Fine thread figures are for 1′′-14. Grade 2, 5, and 8 values are for slightly lubricated bolts. |
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What is torque for M8 bolt?
| Size (mm) Typical Maximum Tightening Torque (Nm) | Property Class | M5 7.0 11.7 | M6 11.8 19.9 | M8 28.8 48.3 |
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How is tightening torque of a bolt calculated?
- normal dry: K = 0.2.
- nonplated black finish: K = 0.3.
- zinc-plated: K = 0.2.
- slightly lubricated: K = 0.18.
- cadmium-plated: K = 0.16.
What is the torque for 1/2 Grade 8 bolt?
| GRADE 5 GRADE 8 | Coarse Thread Coarse Thread | 7/16-20 (.4375) 7575 7/16-20 (.4375) | 1/2-20 (.500) 10200 1/2-20 (.500) | 9/16-18 (.5625) 12975 9/16-18 (.5625) |
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What is tightening torque for bolts?
Torque tightening is
the accurate application of torque to a nut
so that a bolt can hold its load securely without breaking.
What is the torque on a 7/16 bolt?
| Bolt Size TPI Tightening Torque (ft lbs) | Plain | 5 ⁄ 16 18 17 | 3 ⁄ 8 16 31 | 7 ⁄ 16 14 49 |
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What’s the torque on a 30 mm bolt?
| Bolt Diameter x Pitch Thread Stress Area mm 2 *When μ = 0.10 Results in: | Tightening Torque Nm | M24 x 3 353 625 | M27 x 3 459 915 | M30 x 3.5 561 1246 |
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What is torque value?
The measure of torque equals force multiplied by distance
. A lug nut, for example, may have a torque value of 75 foot-pounds. … As a result, this is how torque is transferred to a nut or bolt, force multiplied by distance. American standard uses foot-pounds or inch-pounds to indicate torque values.
What grade is a 9.8 bolt?
Bolts of ISO class 8.8 and the slightly stronger class 9.8 roughly correspond to an
SAE Grade 5
bolt.
How do I calculate torque?
A practical way to calculate the magnitude of the torque is to first determine the lever arm and then multiply it times the applied force. The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force. and the magnitude of the torque is
τ = N m.
Should I torque the nut or bolt?
The answer depends on your application and the condition of the materials being fastened. In many situations
you can apply torque to either the nut or the bolt head
. Both will result in a tight connection and neither will avoid breakage more often (that occurrence can be avoided through other means).
How do I know how much torque I need?
Torque is defined the length of the lever arm multiplied by the force applied
. For instance, if you have a two-foot long bar and you hang a 10-pound weight from it, you have 20 foot/pounds of torque.
What is the torque on a 5’8 stud?
In general, 1/2-inch studs typically have a torque range of 75 to 85 foot pounds; 9/16-inch studs range from 135 to 145 foot pounds; 5/8-inch studs run from
190 to 210 foot pounds
.
