where can I find adjustable handle knobs in metric thread?

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Forum topic by JesseTutt posted 09-21-2012 06:59 PM 2359 views 0 times favorited 5 replies Add to Favorites Watch
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854 posts in 2348 days

09-21-2012 06:59 PM

Topic tags/keywords: question metric bolts adjustable handle knob

There is a slight mis-alignment in the upper guide assembly on my Grizzly bandsaw. Unfortunately, Grizzly uses metric. Instead of trying to find and use an allen wench every time I raise or lower the upper guide to reposition the side bearings, I am considering replacing the allen cap screws with an adjustable handle knob (picture below). Where can I find a supplier of these?

-- Jesse, Saint Louis, Missouri

5 replies so far

View Rex B's profile

Rex B

320 posts in 2488 days

#1 posted 09-21-2012 07:18 PM

Look here on McMaster-Carr. On the left you can select the metric thread size you need.

-- Rex

View crank49's profile


4032 posts in 3208 days

#2 posted 09-21-2012 07:19 PM

Another source is Reid supply.

View syenefarmer's profile


519 posts in 3318 days

#3 posted 09-21-2012 07:27 PM

Yet another source;

View JJohnston's profile


1622 posts in 3529 days

#4 posted 09-22-2012 12:58 AM

I second McMaster-Carr. The nut-gripping part on one of these on the tool rest on my cheap Harbor Freight lathe wore out really fast, so I replaced all of them at once w/metal ones from McMaster. Granted, it’s just pot metal, but they still beat plastic.

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

View HorizontalMike's profile


7770 posts in 3151 days

#5 posted 09-22-2012 01:46 AM

I bought mine at WoodCraft. I bought the larger size, cut the thread off, re-tapped to my desired threading and used a piece of “all-thread” to complete these adjustable bolts. This was one of the first upgrades I did for my astronomical telescope mount, in order to eliminate the “Allen screw” syndrome that you mention:


(Below) Tool-less RA & DEC Adjusting Clutch Levers and Thumbscrews – I found the adjustable levers at a WoodCraft Store but they only came in either 1/4-20 coarse thread (too small to drill out and re-tap) or 5/16” threads (got these because they allow for re-tapping) so a good friend tapped and drilled the 5/16” bolt heads on the lever to the required 1/4-28 fine thread pitch and added the all-thread. Spacers are required to miss the RA housing and should be 5/8” long but still leaving 1.5” of threaded bolt on the end.

-- HorizontalMike -- "Woodpeckers understand..."

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