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Old 03-16-2018, 04:16 PM   #1
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Longer screws for VESA mount monitor?


I apologise for asking this here as I know it's not Linux related at all but, I suppose, this is the only place I know to ask about technology:
I have a VESA mount monitor (An iiyama ProLite E2403WS to be exact) and I wish to mount it using the built-in VESA mount. However, the mount is sunk into the back of the monitor and the stand I have is larger than the depression in the back of the monitor. The depression is exactly the 100x100 plus however many mm for a bracket, but the bracket is beefier than that.
So, my question: Does anyone know the type of screw I would search or in order to get a VESA mount screw that is longer than standard? Or, even better, some pre-existing solution?

I did hope I could borrow a Dremmel fro ma colleague and simply take some material off around the edges but, sadly, there seems to be metal around he edges too so it looks a bit too risky.
 
Old 03-16-2018, 05:32 PM   #2
dave@burn-it.co.uk
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I haven't used one, but does it not slide/slot in from the bottom??

Something like this:
https://www.amazon.co.uk/Vision-Plus...rds=vesa+mount
 
Old 03-16-2018, 05:39 PM   #3
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No, the actual VESA mount is four screw holes forming a square 100mm on each side. If you look at the brackets in the "similar items" you'll see them with both 75mm and 100mm mountings and that there is a fair bit of difference between the amount of material outside of the holes. In the case of my monitor there's about 3mm space between the screw holes and the edges of the recess they've (stupidly) put them in.
 
Old 03-16-2018, 06:31 PM   #4
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Do you mean you need just longer screws which fit into the threaded holes of your monitor? The screws are M4. The length I don't know by heart, but they should be longer by the amount your 100x100mm plate stands off the mounting surface. The type of the screw is M4x<thread lenght in mm>. E.g. M4x20 for screws with a 20mm thread length. Head type cylindrical, slotted.

Use screws which are as long as will fit into the threaded holes to maximize the number of threads catching. But under no circumstance force a longer screw into the threaded hole than it can accommodate. Either you push out the thread or push the screw into the electronics. You might need the Dremel anyway to cut the screw to length. And clean up the threads after cutting.

It might be a good idea to fill the space between the mounting surface and the bracket with flat washers. It is mechanically better.

jlinkels

Last edited by jlinkels; 03-16-2018 at 06:33 PM.
 
Old 03-16-2018, 06:40 PM   #5
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Thanks, jlinkels, so if I look for M4 that will give me the thread type and size? Perfect.
Yes, my idea is to buy some long screws along with some bolts and other hardware to make some stand-offs so that the plate of my mount is outside the recessed area. Exactly how I will do this depends upon how things look with ideas ranging from simply a few spacers on longer bolts to a plate with holes between the mounting bracket and the monitor.
I'm with you on the not going too deep into the holes -- I'll be sure to check the depth and mark things up accordingly.

Quite what the designer was thinking when they inset holes behind a clip-out panel rather than simply having them in the back of the monitor I do not know.

Last edited by 273; 03-16-2018 at 06:41 PM.
 
Old 03-17-2018, 02:54 AM   #6
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Quote:
Originally Posted by 273 View Post
Quite what the designer was thinking when they inset holes behind a clip-out panel rather than simply having them in the back of the monitor I do not know.
When the plate rests in the recessed area forces in horizontal and vertical directions are taken up by the monitor case. Only forces in front/back direction are excessed on the bolts. With a heavy monitorthe forces in vertical direction can be quite high. That is no problem for the bolts, but it is for the threaded inserts in the monitor case.

I think this might be a problem for a 40" smart TV but I am sure it is no problem for monitors up to 27". As long as you do not hit or smash the monitor.

If you are living in the UK as your profile states it should be no problem to obtain M4 bolts. Any DIY shop carries them. If you have to shorten them (which is almost inevitable) note you have to clean the thread after cutting. Dremeling or filing should do that. If you have none of those, put a piece of 220 wet/dry sandpaper on a flat surface and grind the bolt end onto that sandpaper.

jlinkels
 
Old 03-17-2018, 07:24 AM   #7
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If you DO have to cut bolts, get a nut the correct size and screw it up to the bolt head so that the first use of the thread (after cleaning as above) is by the removal of a sacrificial nut and not the mount. Also use a little oil as dry threads are quite abrasive and you want to tighten to the head NOT the thread.
 
Old 03-17-2018, 11:38 AM   #8
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Many thanks, guys, I've ordered some 26mm M4 screws so -'ll see how I do.
 
Old 03-17-2018, 02:37 PM   #9
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Quote:
Originally Posted by 273 View Post
Many thanks, guys, I've ordered some 26mm M4 screws so -'ll see how I do.
Bolts, dear 273, bolts. Not screws.
 
Old 03-17-2018, 02:39 PM   #10
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Quote:
Originally Posted by jlinkels View Post
Bolts, dear 273, bolts. Not screws.
Indeed, and thank you for correcting me.
 
Old 03-17-2018, 08:46 PM   #11
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There are several sizes used for VESA mount. I'd take this 4 mm with a grain of salt. It may be also 5 mm, 6 mm or even larger.
 
Old 03-17-2018, 08:58 PM   #12
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Quote:
Originally Posted by Emerson View Post
There are several sizes used for VESA mount. I'd take this 4 mm with a grain of salt. It may be also 5 mm, 6 mm or even larger.
I am aware of this and it is why I asked the question -- I attempted to buy some longer bolts and ended up with bolts for a much larger VESA mount.
I know from experience that, for the "normal" monitors, the fittings and bolts ar the same but I didn't know the standard used for the bolts.
 
Old 03-22-2018, 03:40 PM   #13
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Thank you all . The M4 bolts arrived today and with the help of some bits of old mouse mat and some old, rusty, bolts and washers I've managed to attach the monitor to the stand.
The monitor is actually heavier than I thought and the bolts in the stand have to be tighter than I imagined but, for now at least, it seems fine.
 
  


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