Ways to cut a small bolt without damaging the thread continuity

Hello,
I do not know if I am asking this question in a good department.
Maybe some of you will advise me on how to cut the thread of a small screw so that it can be screwed in later.

The screw is small in size:



Head diameter 12mm
Thread length 16mm
Thread diameter approx. 2mm

If anyone has tools to cut professionally 3 pcs of such screws for a fee, please contact me too.

thanks in advance for your answer

Sandpaper will do the job in minutes. I also recommend a needle file.

it's about a run of about 4-5 mm
sandpaper not really

First, tighten the nut completely, cut it with a square or hand saw, sand it with a file and unscrew the nut, the thread remains good. Greetings.

The screw is small and the thread is very fine. Are there any smaller handballs?

ttessa wrote:

.. Are there any smaller handballs?

Are.

Please refrain from laconic answers with half-words.
Sorry, I replied strictly to the question asked.
I just wanted to persuade the questioner to ask questions thoughtfully so as not to force us to "pull his tongue".

can you give some examples?

ttessa wrote:

can you give some examples?

Search for trichinella ball.


But why have fun this way? Cut what you have at hand a little further than necessary, and then sand with sandpaper to the desired length.

It is best to sand gently with a grinder. Shaft edge at the start of the thread
you need to chamfer after cutting - make a chamfer on the circumference of the shaft - the thread, there will be no problems with screwing in.

These things are easily done with mini grinders like the Dremel.
Besides, 5 mm of such a screw takes only a few strokes with a metal file. Preferably a "conifer" with a flat cross section. It is also worth getting a modeling vise, screwed to the table. The cost of decent quality files is about PLN 20 / set. Although you can get it for PLN 5 in supermarkets, but I do not recommend it.
The vice is about PLN 10-20.

A mini sander is a bigger expense but it is useful for many jobs. It is also worth investing in grinding tips, mini cutters and cutting discs, as well as a stand and a flexible cord.

Would any of you undertake the payment of cutting such a screw?
I have 3 pcs + one in the pattern to which length you need to cut.
The screw is decorative and out of the box, nickel plated.
I do not want to damage the nickel surface during cutting

Search for a plant or company that has a tool shop or tool sharpener.
Near the place of residence.
You will definitely need a lathe chuck or a vise with prisms.

1 PAWEL wrote:

Search for a plant or company that has a tool shop or tool sharpener.

Or a jeweler - he also has the right tools.

ttessa wrote:

The screw is decorative and out of the box, nickel plated.
I do not want to damage the nickel surface during cutting

You wrap part of the bolt, which you attach in a vice, with tape, paper, cloth, leather - whatever you have at hand. You wrap the shortened thread with insulating or adhesive tape. One layer is enough.

Your problem is classified under the "locksmithing for reluctant preschoolers" group.
Anyone who does DIY of any scale can do it on the spot. The problem is trivial.

Having a vice from a supermarket for PLN 20 and a flat needle file, you can do it in 10 seconds, without unnecessary deliberation. You can also use an ordinary grinder or "square", but be careful not to overheat the screw. It is best to put a bowl of water next to it, touch it for a second and cool it.

If you can't cope with such a simple matter, look for any garage nearby. If you are afraid of damaging the screw - buy a few similar but ordinary ones and practice on them. It may take you half an hour, plus prayer, making tea, and dressing the cuts. ;)

You're going to have fun shipping and shipping right now, the screw will get lost somewhere and you will blame us.

ttessa wrote:

The screw is small and the thread is very fine. Are there any smaller handballs?

Jewelery hair blade 2/0. You can get it for a few zlotys (for a dozen) in any online jewelery wholesaler or on a well-known auction site. A rigid frame for this, a small file or sandpaper and a case for 3 minutes (with cleaning).
You fix the screw by the part (waste) to be cut in a vice without spacers, rigidly and cut off. You chamfer the rest with a file and it's ready

We certainly do not catch the cut part in a vice (2 mm thread), only the screw flange on flat surfaces through washers, then any method or grinding with a small grinder or gentle sawing with a flat needle. The next operation is a chamfer on the circumference of the thread.
Carry out the test on another M2 or M3 screw.

Thank you for your suggestions.
I gave the screw to a jeweler and he did it for a small fee. It's perfect
All right :D

If someone had such screws, I would be happy to buy them back

1 PAWEL wrote:

We certainly do not catch the cut part in a vice (2 mm thread)

Perhaps in this case it is correct.
In the case of larger screws (from M3), I always fix the part in a vice that I will throw into the bin.

ttessa wrote:

If someone had such screws, I would be happy to buy them back

I have seen commercially available from M3 thread.
Just an order from a good turner.
The easiest way to make an M2 screw with a countersunk head, available in two parts, is available on the market
and a made washer with a hole with a countersink for the cone, all soldered with hard solder.

Or maybe you will choose something here. http://www.sklep.cyfronika.com.pl/pl/c/srubki-M2/1085

jerry1960 wrote:

Or maybe you will choose something here.

can you provide the link?

If ready, take a look at the link http://www.srubex.com/ send an inquiry, provide exact dimensions or drawing.