I am looking for a 1/2" or 3/4" threaded steel rod (or a bolt at least 4"
long) that has been cut so that it has two flat sides. Sorta like this:
It allows a nut to be threaded on it normally but the flat sides allow
something to be slid over the rod yet not be able to be spun around the rod
-- if that thing has a complementary non-round hole. Does this type rod
have a name? Sources? TIA. -- Igor
Well, a hand file will take a <long> time to get the profile igor is
looking for, I wager.
Igor, I know what you're looking for, but I don't know a source (nor the
actual name, either, not that you mention it)...could (obviously) be
made w/ grinder and touch up or start w/ square/rectangular stock and
grind to shape then thread. Of course, if you had a mill and lathe,
you'd be all set...maybe here's the excuse you've been looking for? :)
Lacking a real source, visit your buddy's shop and while his back is
turned swipe the depth bar off <his> drill press! Maybe he won't notice
for long enough he'll not know who it actually was. :)
Perhaps not finding a better source you could get a replacement part
from a drill press not <too> expensively???
If he's going to file two edges flat and still have the threaded sides
workable with a nut, I'd be more inclined to use a die to clean up the
threads. Of course, it may depend on the amount of flatness needed and how
fine the files is.
Well, yeah, but I think the problem w/ hand filing is that in order to
get a profile that has enough clearance he's going to be filing for <a
long time> (TM)... :(
Still think his buddy's drill press depth rod is the most likely
It's only 4" long. That's pretty quick work with most files. Worst case
scenario, he uses an grinder and fine tunes it with a really fine file. I'm
thinking 30 minutes at best. But, I do like the drill press depth rod idea.
It's beyond me why someone would need one of those on a drill press anyway.
Starting w/ a 3/4" rod and take off a 1/4" or so on each side is going
to be quick w/ a hand file? I don't think so... :)
That's my thinking if can't find (or make) suitably size rectangular
So do I...looked for spare parts and the one I did locate was $75 for a
typical Delta... :( Of course, that's the high-priced spread, one might
do a little better elsewhere, but as I was afraid, it's not going to be
an el cheapo alternative...and, I think that was the whole depth control
assembly, not just the threaded rod.
I did do a search for square/rectangular threaded bar stock but had
little success (as in none, specifically). Did find a couple of
Acme-thread specialists who undoubtedly have/can make such stuff, but no
distributors in the short time I looked...
Control depth, maybe??? :) My cheapo Crapsman doesn't have one and I do
miss it on occasion...
I do, I did something similar once before when I filed out the inner edge of
a 6" diameter hole in one of my 1/4" thick cast iron tablesaw wings to use
it as a router table. A rough bastard file took off most of it pretty quick.
Of course, I used heavy work gloves to minimize the vibration. It would have
been even faster if I had Lee Valley Tools' auxiliary file/rasp handle. Have
Possibly, but I'd have to experience it to convince me. Maybe the metal down
in the US is harder than the frost-bitten, brittle cold stuff we have up
here in Canada. Especially after the polar bears have gnawed on it awhile.
I, too, know what you are looking for. I do not know a name or a
source. I have had a few things that had a square cross section
threaded on the outside edges. This could be accomplished with
square hot rolled stock and a good threading die.
Keep the whole world singing . . . .
DanG (remove the sevens)
Well, rectangular. But I'd probably mill a piece of threaded rod
and clean it up afterwards with a die, it'd be pretty tough on your
die to start with rectangular stock...unless you take it to the
lathe first. I could spend all afternoon on this ;)
That's a possibility for me. I'm thinking maybe square stock in aluminum
-- which could probably handle the likely stress (i.e., steel may not be
needed) and it would seem easier for me to thread by hand. What I am
picturing is rounded corners that are threaded -- enough threading for a
nut to grab onto. Thanks. -- Igor
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