Black Silver 6#-32 x 5/6/8mm PC Case Power Supply PSU Hard Drive Motherboard Phillips Head Mount Screw for DIY Computer

Black & Silver 6#-32 x 5/6/8mm PC Case Power Supply, Hard Drive & Motherboard Phillips Head Mount Screw

The 6#-32 (UNC 6-32) Phillips head screw is the North American standard fastener for PC power supply unit (PSU) mounting, 3.5-inch hard drive installation, and optical drive chassis mounting. Available in black and silver finishes in 5mm, 6mm, and 8mm lengths, these screws are essential for any DIY PC build using ATX cases with UNC-threaded mounting points.

Key Specifications

Why Choose 6#-32 Screws for PC Building?

• UNC 6-32 standard — the universal thread for PSU mounting, 3.5" HDD bays, and optical drive cages in all ATX cases
• Multiple lengths — 5mm for thin panels, 6mm for standard mounting, 8mm for thicker brackets or additional thread engagement
• Black & silver options — match your build’s colour scheme; black for dark/RGB builds, silver for classic builds
• Phillips drive — compatible with all standard Phillips #2 screwdrivers and magnetic bit drivers
• Pack quantities — practical quantities for a complete PC build or workshop stock

Typical Applications

• ATX power supply unit (PSU) mounting in PC case (4× 6#-32 screws standard)
• 3.5-inch hard drive (HDD) mounting in drive cage (4× 6#-32 screws per drive)
• 5.25-inch optical drive (CD/DVD/Blu-ray) chassis mounting
• PC case internal bracket and expansion card bracket mounting
• Server chassis PSU and drive bay installation

Compatible With

• ATX, mATX, E-ATX PC cases with 6#-32 threaded PSU mounting points
• ATX PSUs: Corsair, Seasonic, EVGA, be quiet!, Fractal Design, Cooler Master
• 3.5" HDDs: Seagate, Western Digital, Toshiba (6#-32 side mounting holes)
• 5.25" optical drives: standard 6#-32 chassis mounting
• Phillips #2 screwdrivers; magnetic tip recommended

Package Contents

• 6#-32 Phillips head screws in selected length, finish, and quantity (per variant)

Frequently Asked Questions

Q: What is the difference between 6#-32 and M3 screws in PC building?

A: 6#-32 (UNC) is the North American standard used for PSU mounting, 3.5" HDD bays, and optical drive cages. M3 (metric) is used for motherboard mounting, fan mounting, and most other PC case fastening. Both thread standards are used in the same ATX case — do not interchange them as the threads are not compatible.

Q: How many 6#-32 screws do I need for a PSU?

A: Standard ATX PSU mounting uses 4× 6#-32 screws. Some cases use 3 screws for mATX PSU positions. Check your case manual for the exact quantity.

Q: What length should I use for HDD mounting?

A: 6mm is the standard length for 3.5" HDD side mounting. 5mm can be used where thread depth is limited. Avoid lengths over 8mm as they may contact internal HDD components.