Computer Hardware Talk Computer Hardware Talk    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  need screw size for cd roms          Computer Hardware Talk Forum Index -> Home Built Hardware View previous topic :: View next topic   Author Message don Guest Posted: Tue May 06, 2008 11:03 am    Post subject: need screw size for cd roms Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. Back to top   Ads Advertising Sponsor kony Guest Posted: Tue May 06, 2008 11:04 am    Post subject: Re: need screw size for cd roms On Tue, 6 May 2008 03:07:44 -0500, "don" <don@panix.com> wrote: Quote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! 4-40 x whatever length you need, typically about 3/16" inch, but 1/4" is more useful, being longer but not necessarily too long. Quote: Thanks Also, what is the standard screw size made for harddrive installation. 3-32, and again it depends on the installation, 1/4" is a nise size but shorter is standard. Back to top   Ads Advertising Sponsor Paul Guest Posted: Tue May 06, 2008 11:04 am    Post subject: Re: need screw size for cd roms don wrote: Quote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. You could start with the claims of an Ebay seller, and then examine the screws you have currently used on your drives, and see if the description matches. For hard drives, the screws cannot be too long, as they'll press against the base. http://stores.ebay.com/B-D-Hardware-House_Computer-Hardware_Screws-Fasteners_W0QQcolZ4QQdirZ1QQfsubZ14041853QQftidZ2QQtZkm For a hard drive at least, you can get info from a hard drive tech manual. See PDF page 50 and Figure 6. Mentions 6-32 screws with max 0.15" long threaded section. http://www.seagate.com/staticfiles/support/disc/manuals/desktop/Barracuda%207200.10/100402371j.pdf For an example CD drive, I found this. Page2 mentions an M3 screw (metric) with thread length 3mm +/- 0.5mm with respect to the casing of the drive. You'd want a slightly longer screw, to take into account the thickness of the slider that comes with the computer case. http://sdd.toshiba.com/techdocs/CD-RWDVD(SD-R1XX2)QuickStartGuide-RevC.pdf Another source of data - this Startech PC screw kit, lists inventory. http://www.startech.com/item-specs/PCSCREWKIT-Assortment-of-screws-nuts-and-standoffs.aspx "Screw 6-32 x .25 Inches Used in PC case cover and I/O plates Screw 6-32 x .15 Inches Used to install hard drives Screw M3 x .25 Inches Used to install floppy drive, CD-ROM drive and motherboard" HTH, Paul Back to top   Ads Advertising Sponsor fwibbler Guest Posted: Tue May 06, 2008 5:27 pm    Post subject: Re: need screw size for cd roms "don" <don@panix.com> wrote: Quote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! How many do you need? -- Graham Website - http://www.thedeathzone.free-online.co.uk Back to top   Ads Advertising Sponsor Claude Hopper (11) 5. ? Guest Posted: Thu May 08, 2008 1:53 am    Post subject: Re: need screw size for cd roms don wrote: Quote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. I never use all four screws for anything. You only need 2 usually even for the power supply. Therefore I always have plenty on hand. -- Claude Hopper :) ? ? ¥ Back to top   Ads Advertising Sponsor kony Guest Posted: Thu May 08, 2008 4:50 am    Post subject: Re: need screw size for cd roms On Wed, 07 May 2008 16:53:00 -0400, Claude Hopper (11) 5. ? <boobooililililil@roadrunner.com> wrote: Quote: don wrote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. I never use all four screws for anything. You only need 2 usually even for the power supply. Therefore I always have plenty on hand. Seems a bit wacko, to have the screws but choose not to use them so you can have extra screws you aren't going to use. Retail drives come with screws, cases normally come with screws. The local computer shops are probably throwing away a few thousand screws a year or have chucked them into a big box and might let you have all you can carry for free. Back to top   Ads Advertising Sponsor Claude Hopper (11) 5. ? Guest Posted: Thu May 08, 2008 5:13 am    Post subject: Re: need screw size for cd roms kony wrote: Quote: On Wed, 07 May 2008 16:53:00 -0400, Claude Hopper (11) 5. ? boobooililililil@roadrunner.com> wrote: don wrote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. I never use all four screws for anything. You only need 2 usually even for the power supply. Therefore I always have plenty on hand. Seems a bit wacko, to have the screws but choose not to use them so you can have extra screws you aren't going to use. Retail drives come with screws, cases normally come with screws. The local computer shops are probably throwing away a few thousand screws a year or have chucked them into a big box and might let you have all you can carry for free. You might need 4 screws if you're gonna drop the pc from an airplane. -- Claude Hopper :) ? ? ¥ Back to top   Ads Advertising Sponsor kony Guest Posted: Thu May 08, 2008 8:01 am    Post subject: Re: need screw size for cd roms On Wed, 07 May 2008 20:13:52 -0400, Claude Hopper (11) 5. ? <boobooililililil@roadrunner.com> wrote: Quote: kony wrote: On Wed, 07 May 2008 16:53:00 -0400, Claude Hopper (11) 5. ? boobooililililil@roadrunner.com> wrote: don wrote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. I never use all four screws for anything. You only need 2 usually even for the power supply. Therefore I always have plenty on hand. Seems a bit wacko, to have the screws but choose not to use them so you can have extra screws you aren't going to use. Retail drives come with screws, cases normally come with screws. The local computer shops are probably throwing away a few thousand screws a year or have chucked them into a big box and might let you have all you can carry for free. You might need 4 screws if you're gonna drop the pc from an airplane. 2 screws do not remove a piviot point along a line between them. If your hard drive had a bay where it had further provisions like friction tabs, rails, etc, that might help. Otherwise, fewer screws also means more of a chance for vibration and less structural integrity of the case. Years ago cases used to be averaging about 1mm thick sheeting, then 0.8mm, and today it's quite common for them to even be thinner. Basically there's just no good reason not to use all the screws if you have 'em lying around anyway. They aren't hard to come by and it's kinda why the holes are there. Back to top   Ads Advertising Sponsor Claude Hopper (11) 5. ? Guest Posted: Thu May 08, 2008 4:46 pm    Post subject: Re: need screw size for cd roms kony wrote: Quote: On Wed, 07 May 2008 20:13:52 -0400, Claude Hopper (11) 5. ? boobooililililil@roadrunner.com> wrote: kony wrote: On Wed, 07 May 2008 16:53:00 -0400, Claude Hopper (11) 5. ? boobooililililil@roadrunner.com> wrote: don wrote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. I never use all four screws for anything. You only need 2 usually even for the power supply. Therefore I always have plenty on hand. Seems a bit wacko, to have the screws but choose not to use them so you can have extra screws you aren't going to use. Retail drives come with screws, cases normally come with screws. The local computer shops are probably throwing away a few thousand screws a year or have chucked them into a big box and might let you have all you can carry for free. You might need 4 screws if you're gonna drop the pc from an airplane. 2 screws do not remove a piviot point along a line between them. If your hard drive had a bay where it had further provisions like friction tabs, rails, etc, that might help. Otherwise, fewer screws also means more of a chance for vibration and less structural integrity of the case. Years ago cases used to be averaging about 1mm thick sheeting, then 0.8mm, and today it's quite common for them to even be thinner. Basically there's just no good reason not to use all the screws if you have 'em lying around anyway. They aren't hard to come by and it's kinda why the holes are there. You stagger them dummy. -- Claude Hopper :) ? ? ¥ Back to top   Ads Advertising Sponsor Claude Hopper (11) 5. ? Guest Posted: Thu May 08, 2008 4:48 pm    Post subject: Re: need screw size for cd roms kony wrote: Quote: On Wed, 07 May 2008 20:13:52 -0400, Claude Hopper (11) 5. ? boobooililililil@roadrunner.com> wrote: kony wrote: On Wed, 07 May 2008 16:53:00 -0400, Claude Hopper (11) 5. ? boobooililililil@roadrunner.com> wrote: don wrote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. I never use all four screws for anything. You only need 2 usually even for the power supply. Therefore I always have plenty on hand. Seems a bit wacko, to have the screws but choose not to use them so you can have extra screws you aren't going to use. Retail drives come with screws, cases normally come with screws. The local computer shops are probably throwing away a few thousand screws a year or have chucked them into a big box and might let you have all you can carry for free. You might need 4 screws if you're gonna drop the pc from an airplane. 2 screws do not remove a piviot point along a line between them. If your hard drive had a bay where it had further provisions like friction tabs, rails, etc, that might help. Otherwise, fewer screws also means more of a chance for vibration and less structural integrity of the case. Years ago cases used to be averaging about 1mm thick sheeting, then 0.8mm, and today it's quite common for them to even be thinner. Basically there's just no good reason not to use all the screws if you have 'em lying around anyway. They aren't hard to come by and it's kinda why the holes are there. Actually there are enough holes for 8 screws, 4 on each side in some cases. You gonna use them all? There is what's necessary and then there is what's silly. -- Claude Hopper :) ? ? ¥ Back to top   Ads Advertising Sponsor kony Guest Posted: Fri May 09, 2008 3:35 am    Post subject: Re: need screw size for cd roms On Thu, 08 May 2008 07:48:34 -0400, Claude Hopper (11) 5. ? <boobooililililil@roadrunner.com> wrote: Quote: Actually there are enough holes for 8 screws, 4 on each side in some cases. You gonna use them all? There is what's necessary and then there is what's silly. Depends on what part you're talking about. 4, even 3 screws is much better than two for the reason I already stated, that it removes the piviot point from having only two. If you mean a hard drive, there is a difference between choosing 8 vs 4 and choosing 4 vs 2. Obviously you don't understand this, that the goal is not to use only the bare minimum to keep the part dangling in roughly the right place. On a case, screwing in at least 4 on the side panels helps a lot too. Do you go around taking *extra* screws out of your car, TV, refrigerator, etc? Makes no more sense to leave them out of a computer than any other device. Actually, the screws in all your other devices are quite a bit harder to come by in many situations, while standard computer screws aren't. Back to top   Ads Advertising Sponsor SteveH Guest Posted: Sat May 10, 2008 11:04 am    Post subject: Re: need screw size for cd roms Claude Hopper (11) 5. ? wrote: I presume the 11 in brackets after your name is your age. -- SteveH Back to top   Ads Advertising Sponsor Guest Posted: Sun Jun 22, 2008 6:08 am    Post subject: Re: need screw size for cd roms If you call into your local computer shop you should be able to purchase these screws or most likely they will give you 4 of the 2.6mm diam screws for the cd-roms, I think they are 2.6mm and the hdd screws are 3mm. I may be wrong and it might be 2mm fdd,cdrom etc and 2.6mm for hdd. J McC jmccardl@bigpond.net.au ------------------------------------------------------------------------------------------------------------ On Tue, 6 May 2008 03:07:44 -0500, "don" <don@panix.com> wrote: Quote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. Back to top   Ads Advertising Sponsor kony Guest Posted: Sun Jun 22, 2008 9:56 pm    Post subject: Re: need screw size for cd roms On Sun, 22 Jun 2008 01:08:57 GMT, jmccardl@bigpond.net.au wrote: Quote: On Tue, 6 May 2008 03:07:44 -0500, "don" <don@panix.com> wrote: Can someone please tell me what the standard screw size is that fits Cd Roms and DVD players to the computer cages. I need to order a box of them because I never seem to be able to find four ! Thanks Also, what is the standard screw size made for harddrive installation. If you call into your local computer shop you should be able to purchase these screws or most likely they will give you 4 of the 2.6mm diam screws for the cd-roms, I think they are 2.6mm and the hdd screws are 3mm. I may be wrong and it might be 2mm fdd,cdrom etc and 2.6mm for hdd. J McC jmccardl@bigpond.net.au They are standard not metric. Hard drives take 6-32, 1/4" long or shorter. CD-Roms/DVD/floppy/etc take 4-40, also typically 1/4" long or shorter. Unless you're looking for something special like stainless steel screws (not that they're really needed) you probably don't need the sizes as most places selling a bag of the right size specify them as (which type of) drive screws instead of listing dimensions. http://www.buyextras.com/screws.html There are probably cheaper places, or as mentioned above a computer shop tends to have plenty of extras and you could probably talk them into giving you a few if you were buying something (else), or maybe even if you weren't. 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