Other company's quote about tension verses torque.

[SureBolt] [ Video ] [ Independent Consultant ]

See NASA quote.

Why SureBolt?

Measures tension not torque,

Patented whole echo method,

Graphs tension changes in real-time,

Instrument is built into the PC,

13.3" Color TOUCHSCREEN

Friction varies too much, bolt to bolt,

Not fooled by friction variations,

Using lubrication still leaves large friction variations,

Avoid flange leaks,

SureBolt

Prove to safety you took a reliable tension reading,

Far greater reliability,

All other bolt gages are one-point bolt gages,

No more zero-crossing peak jumping,

ALL other bolt gages have problems with peak jumping,

Dramatic improvement due to a new patented DSP technique,

Proven by NASA,

Can record over a million bolt tensions with their waveforms,

Playback built in,

Excel compatible data files,

Flange bolts easily grouped together,

Critical bolts,

Verify your design,

Safety,

Tension verification,

Accuracy,

Much easier to use,

Graphical help,

On-line help,

Dynamic help,

13" Color Screen instead of 5" black & white screen,

Full keyboard instead of a few cryptic keys,

Record field notes with your tension data,

You can use long file names,

Large on-screen buttons,

Familiar WinXP/2000 operating system,

Full featured laptop - Panasonic Toughbook Model 72 computer,

1 year limited warrantee,

No need to transfer data to another machine,

No hidden information,

To sum it up, vastly easier and more reliable.

Press here for a detailed point by point comparison to all other bolt gages.

What are many of the sources of errors associated with using a torque wrench?

Answer from SureBolt.

Why use a bolt gage with a torque wrench?

Quote from Spiralock

We quote from Spiralock's website:

"Achieving the proper tension is extremely difficult to do. With STANDARD threads, tests have shown that for a given torque, the tension in the bolt can vary as much as ±50%. This is why torque recommendations are recommendations, or guidelines, and not "cast-in-stone" values. However, testing has shown Spiralock to be significantly more consistent in torque/tension relationships than standard threads.

There are approximately 75 factors which affect the tension in a bolt when torque is applied. Here is a partial list of those factors: hardness of all parts, surface finishes, material type, plating, lubricants, tightening speed, thread fit, and surface pressures. Some of these variables can be identified, but seldom can they be characterized for a production lot. The only way to determine the "ideal" torque for any application is through testing."

We recommend the reader visit Spiralock's excellent website for additional useful technical information.

Back to :SureBolt: A More Reliable Bolt Gage

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Telephone: (800) 732-7832
Postal address: 1022 Antelope Trail, Winter Springs, FL 32708, USA

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No more guessing as to which "one point" is the right point.

The FIRST whole echo method (patented DSP Technique).

SureBolt picture

Built into a
Panasonic Toughbook

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Last Modified: September 27, 2011