Help with finding threaded knobs for T-screw - Woodworking Talk - Woodworkers Forum
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post #1 of 12 Old 07-02-2020, 11:07 AM Thread Starter
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Help with finding threaded knobs for T-screw

I have the T-screws going into my T-track. However, I also need some kind of threaded thumb knob so the t-screw will be tighten on the t-track. I want to be able to loosen the t-screw easily through this threaded thumb lock knob. Second, I also want a threaded 5 star knob that is similar to the thumb lock knob but in 5 star knob shape so that it's easier to move the knob up and down the t-screw. I don't know what these knobs are called. I'm pretty sure if I know their names I would be able to find it online.

Many thanks in advance!
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post #2 of 12 Old 07-02-2020, 11:12 AM
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Threaded Knobs

I bought several styles off of e-bay in different configurations.
very satisfied with all of them.
of course, they are available from dozens of vendors online.

.

there is no educational alternative to having a front row seat in the School of Hard Knocks.

Last edited by John Smith_inFL; 07-02-2020 at 11:20 AM.
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post #3 of 12 Old 07-02-2020, 11:15 AM Thread Starter
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Thank you for the response. Do you have a link to those? Again, I don't know what they're called so I can't find them online.
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post #4 of 12 Old 07-02-2020, 11:21 AM
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if you google "Threaded Knob Images" that will put you in the ballpark
of what you are looking for.

.
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there is no educational alternative to having a front row seat in the School of Hard Knocks.
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post #5 of 12 Old 07-02-2020, 11:29 AM Thread Starter
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Awesome! Thank you, sir!
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post #6 of 12 Old 07-02-2020, 12:36 PM
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Charlie - an item of this type, you should always get extras:
you never know what project may pop up where you need a threaded knob.
this is a leather Stitching Pony I have been working on for some time now.
(also works well for a quick clamp when gluing up small parts).

Help with finding threaded knobs for T-screw-stitching-pony.jpg

.
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post #7 of 12 Old 07-02-2020, 12:49 PM
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I make my own:

http://sawdustmaking.com/WoodKnob/woodknob.htm

Wise men speak because they have something to say; fools because they have to say something -Plato

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post #8 of 12 Old 07-02-2020, 01:12 PM
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This should give you some idea of what's out there.

https://www.mcmaster.com/knobs

Ace Hardware carries a few of these knobs as well, but any well stocked hardware should also have a selection.

Another $000,000,000.02 worth of advice,
Mark
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post #9 of 12 Old 07-02-2020, 02:11 PM
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I use Amazon for a lot of this stuff - shipping gets real expensive from some vendors.


https://www.amazon.com/s?k=1%2F4-20+...f=nb_sb_noss_1
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post #10 of 12 Old 07-02-2020, 07:39 PM
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You need to know the correct thread size for your T-bolts. The most common thread sizes are 1/4-20 and 5/16-18. The 3/8-16 is less common.

If you live near a woodworking store like Rockler or Woodcraft, they usually keep an assortment of jig knobs on the shelf, including the 5-star type.
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post #11 of 12 Old 07-02-2020, 11:44 PM
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They're also called threaded clamping knobs on Amazon and Ebay.


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post #12 of 12 Old 07-03-2020, 12:05 AM
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You can get thumb screws from either Bolt Depot or Micro fasteners. They may carry the threaded knobs too.
I also make my own threaded knobs. Saw or turn a circle, lay out the 5 points, connect the points to the center.
Mark each side of this line how you want the finger grips to look and feel. Usually the perimeter fingers are thinner ,the hub area would be wider. After sawing , sand the sharp edges.
I make my knobs round, then on a metal lathe I use a knurling tool to raise the knurls. I realize few of us have metal working tools, just noting another method.
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