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04-04-2009, 02:29 PM | #1 |
RCC Addict Join Date: Jan 2009 Location: Sebastopol CA
Posts: 1,525
| Best way to shorten a screw?
Can I cut or grind down a 3mm screw, and preserve the threads so that I can still thread it into some aluminum? I've got cut off wheels for my dremel and a grinder.... Thanks. |
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04-04-2009, 02:32 PM | #2 |
RCC Addict Join Date: Jan 2004 Location: Gunbarrel
Posts: 1,167
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Cut off wheel on a Dremel is the best an quickest what that I have found.
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04-04-2009, 02:32 PM | #3 |
RCC Addict Join Date: Jun 2008 Location: Wasilla
Posts: 1,304
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yes, i usualy thread a nut all the way onto the screw and mark it and cut it with a dremel cutoff wheel, that way when you unscrew the nut off the screw the thread are all intact again. and your not fighting to get a screw on it after youve cut it :P
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04-04-2009, 02:34 PM | #4 |
Rock Crawler Join Date: Sep 2008 Location: N.E. Mpls
Posts: 854
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Ya sure I use a dremel cut off wheel all the time just make sure to cleasn up the end of the screw, if ya can put a slight bevel on the end it will make starting the screw alot easier
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04-04-2009, 02:40 PM | #5 |
RCC Addict Join Date: Jan 2009 Location: Sebastopol CA
Posts: 1,525
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Sounds good. Thanks guys! |
04-04-2009, 11:13 PM | #6 |
RCC Addict Join Date: Jun 2007 Location: San Antonio, Tx
Posts: 1,093
| This is the method I use as well it works good.
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04-05-2009, 02:25 AM | #7 |
Rock Crawler Join Date: Apr 2008 Location: On the Snap on truck
Posts: 736
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I usually put 2 nuts and tighten them together and behind the positition I want to cut off,this marks the length I want and also stops the nuts from fallen off when making my cuts.
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04-05-2009, 02:47 AM | #8 |
Newbie Join Date: Dec 2006 Location: Estonia
Posts: 38
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I have crimping pliers similar to these: Works the same as the nut and cutoff wheel mehtod. There are threaded holes in the center of the pliers. You just screw in to the wanted length, press the pliers shut (cutting the screw) and unscrew. |
06-09-2009, 06:03 PM | #9 |
Newbie Join Date: Nov 2007 Location: Iceland
Posts: 30
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I use same methot as Antikas. Quicker, quieter and less messy than Dremel. Also it doesn't heat the screw.
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06-09-2009, 06:58 PM | #10 |
Quarry Creeper Join Date: Dec 2008 Location: fairfield
Posts: 410
| i got a set of these for $5 best tool ive ever used for cutting m3 bolts
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06-09-2009, 09:16 PM | #11 |
Quarry Creeper Join Date: Jul 2007 Location: Fort Mill, SC
Posts: 349
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cut it however you like. clean up the end with a grinding wheel-- making sure the wheel is pulling away from the tip of the screw (shooting sparks towards the tip of the screw), perpendicular with the threads. properly done it prevents any burrs from forming in the threads and it removes any burrs your cutting made. It also chamfers (sp?) the end so that the screw threads easily. |
06-09-2009, 09:57 PM | #12 | |
PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
| Quote:
It's all about getting a nice bevel (chamfer) on the end and the threads will be 100% good to go. I usually use a file to clean up the cut. Here's one I recently cut for my Maxx shaft driveshaft conversion. Last edited by Grizzly4x4; 06-09-2009 at 10:06 PM. | |
06-09-2009, 11:04 PM | #13 | |
I wanna be Dave Join Date: Jan 2005 Location: Hueytown, Alabama
Posts: 6,777
| Quote:
When you take the screw out, it straightens the threads out. | |
06-09-2009, 11:22 PM | #14 |
Quarry Creeper Join Date: Feb 2008 Location: New Rochelle
Posts: 363
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Hahah I just used a metal saw because of my lack of tools. Its really not as a big of a deal as we are making it. I just cut it of with a saw and screwed it in where I need the screw on my dig collar.
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06-10-2009, 12:32 AM | #15 |
Rock Crawler Join Date: Apr 2008 Location: On the Snap on truck
Posts: 736
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06-10-2009, 01:45 AM | #16 |
RCC Addict Join Date: Jun 2009 Location: Salmon Arm BC
Posts: 1,777
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oh ya its easier than shovelling dog crap off the lawn... i put the head of my bolt or screw in the vise and whip out the handy dandy hack saw and give er' hell... then screw it into wherever is destination is and its fine.. i got zip cuts, bench and angle grinders, dremel to cut it with but the easiest way is the hack saw.. |
06-10-2009, 01:50 AM | #17 |
I wanna be Dave Join Date: Jan 2005 Location: Hueytown, Alabama
Posts: 6,777
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06-10-2009, 05:15 AM | #18 |
I wanna be Dave Join Date: Mar 2008 Location: Wayne county. PA
Posts: 2,507
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as cheap as screws are i just have all the sizes i need ...........bob .... |
06-10-2009, 06:59 AM | #19 | |
Quarry Creeper Join Date: Jul 2007 Location: Fort Mill, SC
Posts: 349
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thanks for the pic-- it's worth alot more than any description! | |
06-10-2009, 07:55 AM | #20 | ||
Rock Crawler Join Date: Apr 2009 Location: Pa
Posts: 563
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