Solved Expansion Slot Screws

bigmck

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What size are the screws for PC expansion slots? Are they 6-32 x 1/4"?
 

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Most cases use 6-32 x 3/16" screws to secure PCI covers although 6-32 x 1/4" will also work. Thumbscrews that have a 6-32 thread will also work. Some cases, most notably Lian-Li, use screws with a M3 thread, probably M3x5.
 

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Most cases use 6-32 x 3/16" screws to secure PCI covers although 6-32 x 1/4" will also work. Thumbscrews that have a 6-32 thread will also work. Some cases, most notably Lian-Li, use screws with a M3 thread, probably M3x5.

Lady Fitz you are a "Fountain of Information". I have a whole bag of thumbscrews that I bought to hold the cover on my case. Chances are those are the same size. I never thought about them. Thanks very much.
 

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Glad I could help. When trying the thumbscrews, make sure they fit easily but not loosely, to make sure they are the correct size. If you have to force them, they are too large and if they wobble, they are too small. 6-32 and M3 are very close to being the same size. For reference, 3.5" HDDs use 6-32 screws; 2.5" drives and ODDs (optical disk drives) use M3 (weird, that).
 

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Corsair HX750w
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Antec Two Hundred v2 (modified)
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Cooler Master GeminII S524 120mm (fan replaced with a 140mm)
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AVAST!, MBAM, SAS, Spybot S&D (all but MBAM free) Glary Util
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LSI 9211-8i HBA card (8 SATA III ports), 2.5" & 3.5" Hot Swap Bays, HooToo HT-CR001 PCI-E to USB 3.0 Internal Hub + 6 Slot Card Reader, and LG Model CH12LS28 BD-ROM Optical Drive. Also, ScanSnap S1500 ADF duplexing scanner, Canon 9000F flat bed scanner, Corsair SP2500 2.1 speakers, Samsung CLP 415nw laser color printer, Cyberpower PP2200SW UPS
Glad I could help. When trying the thumbscrews, make sure they fit easily but not loosely, to make sure they are the correct size. If you have to force them, they are too large and if they wobble, they are too small. 6-32 and M3 are very close to being the same size. For reference, 3.5" HDDs use 6-32 screws; 2.5" drives and ODDs (optical disk drives) use M3 (weird, that).

I guess I got too excited too quick. As it turned out, the thumbscrews I had were too big. I am going to order the ones Maxie referenced in the second post and see if they fit. Thanks,
 

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Windows 7 Home Premium 32-Bit - Build 7600 SP1
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Intel Core i3-2120 3.30Ghz
Motherboard
Asus P8Z68-V LX Intel Z68 Socket H2 ATX
Memory
Kingston 4 GB DDR3 1333 mhz
Graphics Card(s)
AMD Radeon HD6670
Sound Card
Sound Blaster Audigy SE 24-Bit
Monitor(s) Displays
Asus VE228
Screen Resolution
1440 X 900
Hard Drives
OCZ Vertex 3 120 GB Sata 3 SSD ==
Kingston SH103/S3 120 G Hyper X 120 GB SSD ==
Western Digital 500 GB Caviar Green 7200 RPM ==
PSU
Corsair CX600M == 600 Watt
Case
NZXT Apollo - Silver with Clear Side Panel
Cooling
Three 120 mm Fans
Keyboard
Microsoft Natural 4000
Mouse
Microsoft Custom Optical 3000
Internet Speed
AT&T Fiber Optic Wireless Network
Antivirus
Microsoft Security Essentials
Browser
Chrome
Other Info
120 mm Blue LED Fan -- Three Blue LED Lazer Light Sticks
Do you have one screw that does fit your slot cover screw holes? If so, see if it will fit in a 3.5" HDD or if it will fit in a 2.5" drive or an ODD. That will tell you what size you need. Plan B would be to take the screw down to your friendly neighborhood hardware store or home center and play show and tell (hint: if the store doesn't have a size and thread gauge, test the screw on nuts to determine the size rather than trying to eyeball it).
 

My Computer My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
Custom Build
OS
Win 7 Ultimate 64 bit
CPU
Intel i7-3930K
Motherboard
ASUS P9X79 WS
Memory
Kingston HyperX Genesis 32GB Kit (8x4GB Modules) 1600MHz DDR
Graphics Card(s)
MSI R7850 Twin Frozr 2GD5/OC Radeon HD 7850 2GB 256-bit GDDR
Sound Card
Asus Xonar Essence STX
Monitor(s) Displays
3x Asus VG248QE 24", Vizio 32" TV
Screen Resolution
1920 x 1080, ?
Hard Drives
Samsung 128GB 840 Pro SSD (1),
Samsung 4TB 850 EVO SSDs (4)
Samsung 4TB 850 EVO SSDs (16) external backup drives used in 2.5" hot swap bays in the computer.
PSU
Corsair HX750w
Case
Antec Two Hundred v2 (modified)
Cooling
Cooler Master GeminII S524 120mm (fan replaced with a 140mm)
Keyboard
Logitech G510s
Mouse
Logitech M525 (two in use)
Internet Speed
=< 32Mbps down, 8Mbps up
Antivirus
AVAST!, MBAM, SAS, Spybot S&D (all but MBAM free) Glary Util
Browser
IE11
Other Info
LSI 9211-8i HBA card (8 SATA III ports), 2.5" & 3.5" Hot Swap Bays, HooToo HT-CR001 PCI-E to USB 3.0 Internal Hub + 6 Slot Card Reader, and LG Model CH12LS28 BD-ROM Optical Drive. Also, ScanSnap S1500 ADF duplexing scanner, Canon 9000F flat bed scanner, Corsair SP2500 2.1 speakers, Samsung CLP 415nw laser color printer, Cyberpower PP2200SW UPS
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