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How to properly shorten the bolt

June 18, 2018 Useful Tips / Crafts from metal 59 364 10

Good advice and useful tricks on how to shorten a bolt, stud or screw. The fact is that if you cut the thread in the usual way, then tighten the nut back onto the threads will not work. All this is due to the fact that the threaded turns are wrinkled.

To avoid this, there is a simple way out.

Will need

The bolt, stud or screw to be cut and shortened.
Nut, 1-2 pcs, with the same thread.

Cut the bolt, stud or screw correctly

So, I'll take a screw for an example. Marker notice the place for cut. We measure with a ruler.

Screw 1-2 nuts onto the bolt for the risk. In general, the nuts should be on the side that you will need in the future.

Now cut it off. Depending on the thickness, this can be done in several ways:

Bite off with wire cutters.
Cut off with a grinder.
Saw off with a hacksaw.
Tighten into a screwdriver and rotate the bolt to saw off with a hacksaw.
Or another way.

Choose you, it does not matter.

I bit off the nippers, as the screw is thin. Of course this is the roughest method, but quick.

Now we hold the nut with pliers and a screwdriver unscrew the screw. This is the whole trick: the nut after eversion will straighten all the turns of the thread at the tip of the cut.

It is better to screw two nuts, they will better adjust all threads.

Now, nuts can be easily screwed onto this trimmed screw.
So simply you can save all the working properties of a bolt, stud or screw after cutting.

Watch the video

come back

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Comments (10)

#1 gvsp Guests June 18, 2018 14:50
6

Yes, yes, in Soviet times every schoolchild knew this. And in production, of course, instead of a nut, a die was used, which I also wish for you.
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1. #2 Ivan Guests June 19, 2018 05:10
  0
  
  Not every house has a die
  
  To answer
  1. #3 Sektor Guests January 29, 2019 19:50
    0
    
    It is written very clearly ON PRODUCTION.
    
    To answer
#4 Guest Sergey Guests June 18, 2018 15:09
9

Before twisting the nut, it is good to process the cut with a file.
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#5 pacemaker Guests June 19, 2018 11:08
5

And doesn’t the chamfer be removed so that these jammed half-turns are gone?
- To answer
#6 ricochet Guests June 19, 2018 17:10
3

in 1970, a teacher on labor showed this achievement of a locksmith workshop and who ??
- To answer
1. #7 Guest Andrey Guests June 27, 2018 10:14
  1
  
  That now there are no labor lessons. Generation 85gg "Pi **** v" except to consume are not accustomed to anything.
  So let them watch and learn. Such advice and vidyuhi are calculated on them.
  For example: a professional electrician, of the young, argued that 220 cannot be made out of 380. Only through a transformer. I had to explain, show and teach.
  
  To answer
#8 Guest Eugene Guests August 6, 2018 12:19
3

I do this: I screw 2 nuts so that the edges coincide, clamp in a vice and saw off the bolt.Again, I clamp these nuts vertically so that the sawn part of the bolt ~ 8-10 mm protrudes from the jaws of the vise. While pressing the file to the jaws of the vise, I go around the circle of the bolt at an angle of ~ 45, removing burrs and making a good approach, unscrew the nuts.
- To answer
#9 Guest Igor Guests September 16, 2018 12:08
0

In Soviet times, this was taught in labor lessons.
- To answer
#10 Evgeny Guryevich Guests July 1, 2019 11:12 PM
0

Since at the present time the “grinder” is used by everyone instead of a hacksaw, you can do without a nut,
if, after cutting the threaded part, the chamfer on the barrel of the same disc is pressed with the foot of the “Bulgarian” so that the sparks fly from the end to the side cut off piece, not allowing the luminous metal to float between the turns.
- To answer