# Bolt clamp force calc

Variations are common, although yours seems excessive. Chris Johns Chris Johns One option would be to consider load indicating washers. Without having all the information, we are unable to help, but I would start by double checking your values to make sure an error was not made. Featured on Meta. Jugal- We are not surprise that your values vary a bit from ours. Does the increased hardness of the gasket material affect my torque value? The same above mentioned formulae are used for calculating torque for countersunk screws or any other multiplication factor available…???

• Bolt Torque Calculator
• Bolt Preload Tension Force Equation Calculator Engineers Edge
• Force Calculations for Bolted Joints Machine Design
• Force Calculations for Bolted Joints Machine Design
• Tension vs. Torque Portland Bolt

• Video: Bolt clamp force calc Bolt thread engagement shown and explained Class 8 Bolt Clamp force

See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. Note that standard dry torques are normally calculated to produce a tensile stress - or axial force or clamp load - in the bolt that equals to 70% of minimum tensile.

That figure is about right for a low tensile bolt.

### Bolt Torque Calculator

Some methods involve calculating clamping force by tightening the bolt by a predetermined.
Only gasket material I can get is Grade 2 at 80 durometer. Leave this field empty. The biggest uncontrolled variable when determining torque is friction. We use drivers with calibrated torque click at 0. Duncan — Apologies, but we do not have any engineers on staff, so cannot comment on application-specific questions like this.

There is no such thing as an overtightened connection, until you break the bolt in tension.

### Bolt Preload Tension Force Equation Calculator Engineers Edge

Jugal- We are not surprise that your values vary a bit from ours.

 Optimistic radiohead download album See Estimated Torque Values. Does the increased hardness of the gasket material affect my torque value? This question is a bit off the beaten path. Phone: I'm trying to calculate the clamping force resulting from torquing a nut and bolt to a particular level. Thank you so much was helpful.
The clamping force on a bolt is defined as the compressive force a fastener exerts on a joint. This is can be dependent on a number of factors, but is largely a. Tightening torque values are calculated from the formula.

T = KDP, where T bolt. Clamp load (lb.) is calculated by arbitrarily assuming usable bolt strength is.

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Mel — Without more information I cannot be certain, but the possibilities include snapping the bolt, crushing whatever you are bolting, or maybe nothing.

The primary influence on torque calculations is coefficient of friction. Chris Johns Chris Johns Anchor bolts are not typically torqued to a specific requirement, as the AISC says that snug tight is acceptable.

We should use the same torque??

## Force Calculations for Bolted Joints Machine Design

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See Estimated Torque Values. We use drivers with calibrated torque click at 0.

I have found this formula in various forms in a lot of places. Should you torque a bolt to a recommended torque even when using helical spring lock washers?

## Force Calculations for Bolted Joints Machine Design

So, let me know your feedback. During actual process of bolt tightening esp.

The stretch of a bolt or metal rod loaded in tension is calculated by use of the following equation.

If the turn-to-tension procedure is used to establish clamping. Try our free and simple bolt load calculator to approximate your bolt stress at installation. On the go? Download our Bolt Load Calculator app instead. This amount of tightening, a rule of thumb, is suitable for many joints, but in some cases, external tensile loads can reduce bolt clamping force.
Hi, I need the Torque report format, Could you provide format sample?

I am not aware of any allowable torque values for lag bolts. Only gasket material I can get is Grade 2 at 80 durometer. I used Friction factor of 0.

## Tension vs. Torque Portland Bolt

Granted, these types of bolts are much larger than your M3 bolt, but lbs is nothing. I would expect a fine thread to give more clamping force for the same torque.