I would like to be able to thread the ends of 3/4″ steel bars to accept nuts. Is there a fairly inexpensive tool to do this?
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what type of bars???
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What kind of steel and how much load?
You could buy a die if the steel is accurately sized, but I'm wondering if it would work for you to weld bolts with the heads cut off to the ends where you need threads.
Done it in structural applications, it works.
I should have been more specific. I want to make some furniture out of big re-claimed fir beams and steel bar. It would look better if only the last several inches of the bars I'm using were threaded, and the over-sized nuts and washers are also part of the look I want. They aren't really structural in any meaningful way.
aren't really structural in any meaningful way.
then just weld on a piece of threaded rod, and grind off the bead to look like a single piece.
BTW, you would spend more on a single die and handle at one of the fancy/schamncy tool houses for a 1-14 die than the whole HF set costs - dont think you are going into production....
why can't you use threaded rod?
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have you ever used a die ?
as in "tap and die " ?
we keep a 1/2" and a 3/4 " for rethreading foundation bolts that get damaged
"have you ever used a die ?"No. I don't know much about metalwork at all. I've done a bit of light welding using shielded wire, but that's it.I always leave the nut on my anchor bolts and fix the threads by taking them off before laying the plates.
well, get some cutting oil and a 3/4 die , same thread as your nuts.... and have fun.... not much to itMike Hussein Smith Rhode Island : Design / Build / Repair / Restore
Don't ferget the die handle.
If you don't have a good tool store near you that carries a 3/4" x 16 tap, you could always order from here:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41481
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Rebuilding my home in Cypress, CA
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Look, just send me to my drawer. This whole talking-to-you thing is like double punishment.
Don't waste your time with a Harbor Freight POS -Try MSCDirect.com or Enco tools instead -Your hardest task will be starting the die square and true on the bar. It will most likely not be completely round and you may have to file or grind a little to get the die to start. Then use plenty of cutting oil, not WD-40 and take small bites. Cut about a 1/6 to 1/4 turn then back up 1/2 turn or so.Good Luck!
He needs a die, not a tap.
If there are no structural issues involved, cheat a little by drilling out some three-quarter inch nuts, side them on with glue - but don't forget to paint them black! No threading, and no one will know.
I've had this direction from an architect.
Remember, its supposed to be fun.
Lapun.
you'll get a better cut if you can find a local machine shop to thread them on their lathe for you. Being slightly oversized could be solved there. At the machine shop it's a very simple process and might be relatively inexpensive.
If the rods are undersized you'll get a weak fit not suited for loads.
What a bunch of Nancies, I coulda filed the threads by now. LOL
I made one of them bench vice screws that was a hunk of maple 2" diameter. Cut the threads by saw and chisel, then used that to make the nut by interupting a thread and inserting a Vee cutter.
That was slow going.Spheramid Enterprises Architectural Woodworks
Repairs, Remodeling, Restorations
They kill Prophets, for Profits.
you calling me a nancy? lol but i bet you could cut 3/4-10 with a hand file faster too, you hand jobber you. :)
There's a small machine shop not too far from here that can cut the threads faster than i can order the die and handle from McMaster. (Anchor bolts around here are 1/2-13 so no need for a 3/4-10.) For small cash-jobs like this they usually get it in process immediately and do it while I'm waiting.
Getting the 3/4 die started on new rod can be a pain, and if it starts off tipped a bit you're not going to get it straighetend out without cutting off what you screwed up and starting anew. Chasing threads to clean them up is a lot easier/different than cutting anew.
You can do magic with taper files, cantsaw files, and a hacksaw blade.
I draw the line at Acme threads tho' about impossible to hand cut well.Spheramid Enterprises Architectural Woodworks
Repairs, Remodeling, Restorations
They kill Prophets, for Profits.
Is the stock you bought the proper diameter for threading?
If so, then just get a die and handle, then have fun.
If not, then you will have to turn down the stock to the proper diameter.
Can you use 3/4" all thread and slide a thin wall piece of pipe over it like a sleeve to hide the threads?