where can I find adjustable handle knobs in metric thread?

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Forum topic by JesseTutt posted 671 days ago 1007 views 0 times favorited 5 replies Add to Favorites Watch
View JesseTutt's profile


795 posts in 709 days

671 days ago

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

307 posts in 849 days

#1 posted 671 days ago

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

-- Rex

View crank49's profile


3337 posts in 1569 days

#2 posted 671 days ago

Another source is Reid supply.

-- Michael :-{| “If you tell a big enough lie and tell it frequently enough, it will be believed.” ― A H

View syenefarmer's profile


387 posts in 1678 days

#3 posted 671 days ago

Yet another source;

View JJohnston's profile


1577 posts in 1889 days

#4 posted 671 days ago

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.

-- "Sorry I'm late. Somebody tampered with my brakes." "You should have been early, then."

View HorizontalMike's profile


6914 posts in 1512 days

#5 posted 671 days ago

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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