Is torque normally applied to the nut or the bolt?
Is torque normally applied to the nut or the bolt?
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). In certain circumstances, however, you will need to torque one and not the other.
What does K mean in torque?
nut factor
where T is the torque measurement, K is the nut factor, F is the tension and D is the bolt diameter. With this equation, if you know K, F and D, you can multiply them to get the torque needed to tighten the bolt so that it has the right amount of tension.
Do you apply torque to the nut or the bolt head?
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).
When do you apply torque to a fastener?
Working with Fasteners requires the utmost care at time, while others times you need to apply brute force. A common Fastener question that workers in many industries ask applies to torque. When tightening Hex Bolts or other Nuts and Bolts, are you better to apply torque to the nut or the bolt head? Is one method more likely to result in breakage?
Why do you need less torque to tighten a bolt?
As the coefficients of friction drops, less torque is needed to tighten the nut. With very low friction on small diameter bolts the nut can be turned so easily that the bolt will stretch past its yield before the right nut torque is reached, and the bolt breaks. For Teflon…
Can you apply torque to a head cap?
These questions may also apply to Hex Head Cap Screws. 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.
What is the torque for bolts?
Different bolt sizes and grades have different torque specifications. For example, 6 mm bolts with a 10.9 grade have a maximum torque value of 10 foot-pounds, while the same-size bolts with a 12.9 grade have a maximum torque value of 12 foot-pounds. Consult your shop manual for the most precise listings.
What are torque specifications?
Torque specifications are for dry threads only. The fastener threads should be free of oil, dirt, grit, corrosion, etc. The hardware should turn freely without binding when tightened by hand. It is important NOT to lubricate hardware threads or seats. The friction at which torque is measured against should come from the hardware seats.
What is a torque screw?
Screw Conveyor Torque. Torque is defined as the twisting force exerted by the drive unit on the conveyor screw. Torque is transmitted through the drive shaft of the drive unit to the screw and converted to force to convey the bulk material.
