What thread are they? I'd guess at American Coarse or UNC. They seem to cost about a couple of quid for a packet of twenty on Ebay - must be cheaper to buy a hundred elsewhere?
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11 years ago
Hard Disc fixing screws.
Loading thread data ...
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11 years ago
Never had to buy any, they just seem to accumulate in the oddments tray
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course you always use them up on friends' computers so your own discs end up fitted with just 2 or 3 screws.
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11 years ago
Varies older discs I have (>5 years) are probably UNC. More recent discs seem to have machine screw thread tapped holes possibly metric.
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11 years ago
There seem to be at least two common sizes. Some take the normal case diameter screws, and others need the smaller ones that are closer to M3.
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11 years ago
Three 3.5" drives to hand all take the "case" screws (both for side and bottom mounting) but a 2.5" one takes smaller ...
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11 years ago
Hitachi website says M3 (max thread length 2.5mm) for those.
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11 years ago
I'd be ok if they were metric - got vast stocks of those in the common sizes. So it's the larger ones commonly used on 3.5" HDs and desktop cases.
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11 years ago
Mine seems to empty faster than it fills...
American (or National) coarse 6-32
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11 years ago
I you're in no particular hurry for some ...
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11 years ago
UNC 6/32
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11 years ago
About 0.135 inch or 3.4mm according to my callipers...
A 6-32 UTC thread apparently:
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11 years ago
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11 years ago
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used to be in the 99p corner in the offer leaflets from time to time. (I've not noticed them recently, but I stopped getting the leaflets for about 6 months and they only just started coming again).
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11 years ago
Google Shopping has a few listed as "£1 free shipping" but I suspect the free shipping won't apply for such a tiny order if you actually get as far as the checkout ...
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11 years ago
I think 2.5" drives have different sized holes for mounting.. the ones the OP is talking about fit the holes in the side. there are different holes in the face but I don't recall what size.
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11 years ago
Those are the M3 size.
I had a suspicion the ones on the face of the disc were smaller than the ones on the edge, but I checked, and the "case" screws fit all mounting points on a 3.5"
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11 years ago
UTS = Unified Thread Standard, which is a generic term that encompasses both UNC and UNF threads. As you say UTS 6-32 is also UNC 6-32.
Colin Bignell
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11 years ago
It does if you remember to tick the correct box - it defaults to charging you for first class postage. But VAT ain't included.
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11 years ago
6/32 is the same thread as used to fix power outlets in australia
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11 years ago
The UK used BA up until about '70, then changed to M3.5.