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post #1 of (permalink) Old 12-18-2002, 09:45 AM Thread Starter
 
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OT- starting a nut on a bolt with bad threads?

Spent half the friggin' night getting the spring hanger bolt through, but of course, ended up f!#$ing up the first few threads. I sure as hell don't wanna pull it back out and put in another one. Not to mention it's just the first few threads.

If I could just get it started!.... Tried a little everthing. Just won't "bite".

Tips???!!!!! Thanks!
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post #2 of (permalink) Old 12-18-2002, 09:49 AM
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Re: OT- starting a nut on a bolt with bad threads?

i had the same problem with bumper bolts. i took the correct size thread cleanup die, put it in my impact gun, and went to town on the bolt. crude but effective.
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post #3 of (permalink) Old 12-18-2002, 09:50 AM
 
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Re: OT- starting a nut on a bolt with bad threads?

use a grinder and smooth down the buggered threads, and taper so the nut will slide past them and grab some GOOD threads.

or you can try a thread file and cleaning them up, but if they are buggered badly I usually round the end off with a grinder.

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post #4 of (permalink) Old 12-18-2002, 09:59 AM
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Re: OT- starting a nut on a bolt with bad threads?

Been there and done that. Take a file with a fine edge and correct the threads. You can bring them back enough so that the nut will bite.
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post #5 of (permalink) Old 12-18-2002, 10:18 AM
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Re: OT- starting a nut on a bolt with bad threads?

I think you would probably have good luck with the die. That is what they are designed for.
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post #6 of (permalink) Old 12-18-2002, 10:50 AM
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Re: OT- starting a nut on a bolt with bad threads?

A thread file is the ticket. Everybody should have one in their toolbox. It is a file with teeth spaced to fit the thread pitch. Typically they are about 8" long and 3/8" square. Each side of each end has a different pitch, so one file will clean up 8 different thread pitches. And they don't care if it's a 1/4-20 or a 7/16-20 or 1/2-20, so one file can repair a whole bunch of bolt sizes.

Still time to e-mail Santa.
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post #7 of (permalink) Old 12-18-2002, 05:40 PM
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Re: OT- starting a nut on a bolt with bad threads?

If you've already got the bolt through, it's usually and easy matter to knock that one out by knocking a new one in. So, if you have a problem with thread length that's the way to go. Otherwise, get a thread chase nut from your local hardware store. They're not very expensive and you don't need anything special to use them. They have enough taper to start onto the good threads and will clean up the boogered ones.
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post #8 of (permalink) Old 12-18-2002, 07:59 PM
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Re: OT- starting a nut on a bolt with bad threads?

I'll second the thread file, they work awesome. For years I always used a thin file to chase the threads, then I got my first tap & die set. Now I use the thread file when on the trail and to do quick jobs where chasing isn't necessary.
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post #9 of (permalink) Old 12-19-2002, 01:54 AM
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Re: OT- starting a nut on a bolt with bad threads?

Well I was going to brag about the thread file but I see I'm too late. What a great tool. I couldn't agree more, its a must for every tool box.
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post #10 of (permalink) Old 12-19-2002, 06:24 AM Thread Starter
 
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Re: OT- starting a nut on a bolt with bad threads?

Where can you get a thread-file? Is it a Home Depot run or an Advanced run? [img]images/graemlins/laugh.gif[/img]
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