Frequently Asked Questions about Stainless Steel Fasteners (Part 1)

In our latest blog post, we answer frequently asked questions on stainless steel fasteners:

 

  1. How can I select a fastener for a particular use?

There are several factors that come into play when you want to select a fastener for any application. These include:

    1. The number and/or the size and/or the strength of the fasteners required will have to be considered. You have to carry out an analysis of these factors with a program such as BOLTCALC.
    2. The best bolt material to withstand the elements in the area of application will determine which fastener will be suitable. You will have to select a steel fastener with the appropriate surface protection to prevent corrosion as well as a material that will be suited to the environmental conditions.
    3. You need to consider each application and analyze the requirements a fastener should meet before selecting the best material.

 

  1. How can I easily check the torque value on a bolt?

Checking of torques applied to bolts after their installation is possible through the "crack-on" method when a socket begins to move away from the tightened position in the tightening direction.

 

You can also check torque with the "crack-off" method when a socket begins to move away from the tightened position in the untightening direction.  If you re-tighten the fastener up to a marked position, in the tightening direction, you can also check torque.

 

Always apply torque in a slow and deliberate manner to minimize the dynamic effects on the gauge reading. Make sure the member that does not rotate stays put when checking the torque.

 

  1. Is there a difference between a bolt and a screw?

Yes, there is. And, the best way to describe the difference is by understanding that you use screws with tapped holes and bolts with nuts.

Contact us today for everything you need to know about bolts and bolting problems.

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