Tension springs

A quick learner from Granby, MO says:
Here are picture for I device I am making that requires tension springs.
The two shown holding something are an example of the use of the holder, My daughter purchased it at a show she went to.
The two with the dimensions is the one I am building for here and need a tension spring for.
Thanks for your help
User submitted photos of a tension spring.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I'm not sure if these springs would work but take a look at our 20-001. This spring is for adding tension to a wood window sash. It's large, but maybe you can make allowances in your design.

Another possibility is our 70-011 window screen tension spring. What you would have to do is drill two 3/16" holes approximately 3-3/16" apart. That should secure it in your bracket.

Looking at your photo I can see a spring you already have. That looks like the type a picture framer uses to secure photo backing in metal frames. If that one you have works well for you try a local craft store or a picture framer store to see if you can purchase them by themselves.
A quick learner from Granby, MO says:
I appreciate you information regarding a possible source from a craft-picture frame shop. I will look locally to see if I can find one. If I cannot I will try your 70-011. Thanks again for your help.
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