What are the screws that came with the HC2 for?

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dchang0
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What are the screws that came with the HC2 for?

Unread post by dchang0 » Tue Dec 18, 2018 5:25 pm

I got four machine screws in each of my HC2 boxes, but they don't seem to fit anything.

They don't fit my 3.5in hard drives (too small in diameter).

What are the four screws for?

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Re: What are the screws that came with the HC2 for?

Unread post by dchang0 » Tue Jan 15, 2019 4:05 am

I figured it out.

I must've gotten the wrong size of screw. The screws that came with my HC2 are for 2.5in drives, not 3.5in drives. I think they were meant to go with the HC1

I went and ordered some 6-32 screws for the 3.5in drives I installed.

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mad_ady
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Re: What are the screws that came with the HC2 for?

Unread post by mad_ady » Tue Jan 15, 2019 5:03 am

I had no idea 2.5" and 3.5" drives use different screws.

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odroid
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Re: What are the screws that came with the HC2 for?

Unread post by odroid » Tue Jan 15, 2019 4:46 pm

We've tested several different HDDs and all of them uses the M3 screws.
Image

But, some other HDDs mount holes seem to match to #6-32 UNC screw instead of M3. :o
Can you tell me the brand/model name of your HDD?

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Re: What are the screws that came with the HC2 for?

Unread post by dchang0 » Mon Jan 28, 2019 4:04 am

I'm using the Western Digital WD80EMAZ 8TB White-label drive shucked from inside a recently-purchased WDBCKA0080HBK-NESN EasyStore external hard drive.

It is probably a different part than the ones you tested (in your photo). WD is known to install many different kinds of drives inside their EasyStore enclosures, including HGST helium drives, HGST non-helium drives, WD Reds, WD Purples, and WD Blues. Older 8TB EasyStores had HGST drives; newer ones are likely WD Reds. The model number might actually be the same (I see a WD80EMAZ in your photo.)

I guess if I were in your shoes, I'd include one or two 6-32 screws with the HC2 and maybe reduce the number of M3 screws from four to two to offset the cost.

FYI, my drive's screw holes seem to line up properly with the holes drilled in the HC2, so I didn't understand the comment/note that the WD 8TB drives you tested didn't line up. This supports the hypothesis that I got a different part than you did, even though both drives are WD 8TB and have White labels.

If I had to bet, I bet that you got one of the early HGST helium drives as your 8TB White-label drive, and I got a WD non-helium Red-label drive.

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Re: What are the screws that came with the HC2 for?

Unread post by odroid » Mon Jan 28, 2019 10:04 am

Thank you for the inputs.
We will consider including additional two 6-32 screws for the next production batch in April or May.

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