which screw key size is used for standoffs ?

empleat · November 29, 2019

Which screw key size is used for standoffs ? My case is idiotic, i had there already placed all standoffs, except one, which had no hole in it... Like wtf ? And i got with case one spare, so i had to use cutters to loosen it, because it is fastened so hard. And than i did same to fasten it. But it doesn't hold, when i screw it rotates with screw. Also i can't fully screw screw to the motherboard, it stop when screw is still 1-2 mm from motherboard. Had kinda same issue with previous mobo. If it would even help screw it with key, because i screw it with cutters and it wasn't possible to screw it more and it still wasn't holding.

flashiling · November 29, 2019

do you have your motherboard/case user manual? it might say which scrwes are used.

maybe check the case/mobo manifacturers website

empleat · November 29, 2019

I thought standoffs are all same size. But i already looked at manual and it wasn't there. I am not talking about screws ! And i don't have measuring device to measure them myself. I will look again, buti don't think it was there.

EDIT: there is nothing about standoffs, because they are included with case, looked in case manual, btw which is not even manual, there is nothing and notthere is not specification of that. only picture and name haha. Useless as usual...

mariushm · November 29, 2019

Computers use mostly two sizes:

UNC 6-32 (imperial, 32 threads per inch) for case, 3.5" drives, adapter cards, standoffs

M3 (metric 3mm outer diameter) : used for 5.25" drives and sometimes for standoffs

The exception is the M2 screw for M.2 cards, which you probably guessed it's metric 2.

There's also the screws on VGA and DVI connectors and various DB connectors (serial, parallel etc) which are UNC 4-40

So most likely the screws you need are UNC 6-32 and if you have UNC 6-32 and M3 in front of you, the 6-32 are the ones with courser thread and slightly thicker.

The standoffs (if you want to buy some separately) should have 0.250" (~6.3mm) of height between the thread part and the top where the motherboard sits.

empleat · November 29, 2019

Yeah i just found it on wikipedia surprisingly. If i buy screw key unc 6-32 (imperial, 32 threads per inch), hope it will work. But i have feeling that it won't do anything, because i already used cutters to grab it and fasten it as much as possible and it still moved. Just hope it works, case i got is total garbage, silent base 801. Case feet wouldn't fit, while on it video guy just pushed and it instantly went in. It took me 30 minutes to mount feet, why using force... Ofc course i watched reviews, but from that you won't get informed about all problems which can arise... It is always something... Got garbage piece i guess. And in manual there was nothing about it... It would be hard to return, because feet not going out...

And btw i can't even find that key on any site and i live in czech republic. As matter of fact i can't find it anywhere.. Guess i try to ask somewhere dunno...

EDIT: They gave me some plastic thing that you can use to screw it, but still even i know how to build pc, i would rather pay to have it built. There are to many problems, which cannot be detected even from googling and watching reviews.