Having managed to remove the stuck screw, I found a replacement in my
screw stash but it was shorter than the original with a smaller diameter
head.

I have my WD Red 2 GB discs to eventually mount but the mounting screws (I
just checked) are not countersunk.

Searching on line I understand that the side mounting screws on 3.5" HDDs
are 6-32 UNC.

I can find 6-32 countersunk screws on line but they look to be the smaller
type I already have.

If I search for screws for the Proliant caddy I get offered the caddy, not
the screws.

Anyone have a good source of screws?

Also, the ones I found on Amazon are listed as 5 mm long.
The screw I have finally extracted measures 7 mm from the flat top to the
end of the thread.
Is the measurement the thread length or the total length?

Cheers

Dave R

--
On the Acer All-In-One

On 20/03/2023 14:50, Dave R wrote:
> Having managed to remove the stuck screw, I found a replacement in my
> screw stash but it was shorter than the original with a smaller diameter
> head.
>
> I have my WD Red 2 GB discs to eventually mount but the mounting screws (I
> just checked) are not countersunk.
>
> Searching on line I understand that the side mounting screws on 3.5" HDDs
> are 6-32 UNC.
>
> I can find 6-32 countersunk screws on line but they look to be the smaller
> type I already have.
>
> If I search for screws for the Proliant caddy I get offered the caddy, not
> the screws.
>
> Anyone have a good source of screws?
>
> Also, the ones I found on Amazon are listed as 5 mm long.
> The screw I have finally extracted measures 7 mm from the flat top to the
> end of the thread.
> Is the measurement the thread length or the total length?

<https://www.amazon.co.uk/sourcing-Computer-3-5-inch-Phillips-100pcs/dp/B01MSKSTED/>

Apparently I purchased these in June 2020 so they are probably the bag
of screws I have just found.

What is now bugging me is that the picture doesn't seem to be of the
fine UNC thread I am looking for.

<https://www.amazon.co.uk/sourcing-Computer-3-5-inch-Phillips-100pcs/dp/B01MSKSTED/>

These (1/4" seems to match the length) look more like it but delivery is
April 6-18th which is just under a month if they hit the pessimistic
date. Shown as in stock, though!

Search continues.

Cheers

Dave R

On 20/03/2023 14:50, Dave R wrote:
> Having managed to remove the stuck screw, I found a replacement in my
> screw stash but it was shorter than the original with a smaller diameter
> head.

It has already been mentioned, but don't know if you've looked?

HP Proliant servers have a tradition of having rows of spare screws
purposely screwed into the metalwork?

--
Adrian C

On 20/03/2023 20:28, Adrian Caspersz wrote:
> On 20/03/2023 14:50, Dave R wrote:
>> Having managed to remove the stuck screw, I found a replacement in my
>> screw stash but it was shorter than the original with a smaller diameter
>> head.
>
> It has already been mentioned, but don't know if you've looked?
>
> HP Proliant servers have a tradition of having rows of spare screws
> purposely screwed into the metalwork?
>
Thanks.

There are some interesting black screws in a row at the front of the
case next to a row of empty holes.
However they aren't HDD side mounting screws.

Cheers

Dave R

On 2023-03-20, Dave R <wibble@btinternet.com> wrote:
> Having managed to remove the stuck screw, I found a replacement in my
> screw stash but it was shorter than the original with a smaller diameter
> head.
>
> I have my WD Red 2 GB discs to eventually mount but the mounting screws (I
> just checked) are not countersunk.
>
> Searching on line I understand that the side mounting screws on 3.5" HDDs
> are 6-32 UNC.
>
> I can find 6-32 countersunk screws on line but they look to be the smaller
> type I already have.
>

> If I search for screws for the Proliant caddy I get offered the caddy, not
> the screws.
>
> Anyone have a good source of screws?
>
> Also, the ones I found on Amazon are listed as 5 mm long.
> The screw I have finally extracted measures 7 mm from the flat top to the
> end of the thread.
> Is the measurement the thread length or the total length?

https://www.pro-bolt.com/bolt-measuring-guide/

>
>
> Cheers
>
>
>
> Dave R
>
>