25pcs M3 Phillips Round Head Washer Screw Set for PC Case Chassis Motherboard CD DVD ROM Mount Silver Black 4–8mm

25pcs M3 Phillips Round Head Washer Screw Set — PC Case, Chassis, Motherboard & CD/DVD ROM Mount

The M3 Phillips round head washer screw is the standard fastener for PC case chassis assembly, motherboard mounting, optical drive installation, and internal component mounting. The integrated washer head distributes clamping load over a larger area, preventing pull-through in thin sheet metal and protecting PCB surfaces. Available in silver and black to match your build.

Key Specifications

Why Choose M3 Washer Head Screws for PC Building?

• Integrated washer head — larger bearing surface prevents pull-through in thin PC case sheet metal and protects PCB mounting pads
• M3 standard thread — universal PC case standard for motherboard, optical drive, and internal component mounting
• Silver & black options — match your build’s colour scheme; black for dark/RGB builds, silver for classic builds
• 25pcs pack — practical quantity for a complete PC build or workshop stock replenishment
• Multiple lengths — 4mm for thin panels, 6mm for standard mounting, 8mm for thicker brackets

Typical Applications

• ATX, mATX, Mini-ITX motherboard mounting in PC case (M3 standoff + M3 screw)
• CD/DVD ROM and optical drive chassis mounting
• PC case internal bracket and drive cage assembly
• HDD and SSD bracket mounting (2.5” and 3.5” drives)
• PC case side panel and front panel assembly
• Server chassis and rack-mount component installation

Compatible With

• ATX, mATX, Mini-ITX, E-ATX motherboards (M3 mounting holes)
• Standard PC case M3 brass standoffs (sold separately)
• Optical drives: CD-ROM, DVD-ROM, Blu-ray (M3 mounting holes)
• Phillips #1 and #2 screwdrivers; magnetic tip recommended
• PC case brands: Fractal Design, Lian Li, NZXT, Corsair, be quiet!, Phanteks

Package Contents

• 25× M3 Phillips round head washer screws (length and colour per variant)

Frequently Asked Questions

Q: What M3 screw length do I need for motherboard mounting?

A: M3×6mm is the standard length for ATX motherboard mounting on M3 brass standoffs. M3×4mm is used for thin panel mounting. M3×8mm is used for thicker brackets or when additional thread engagement is needed.

Q: Do these screws work with all PC cases?

A: Yes. M3 is the universal standard thread for PC case motherboard and component mounting. These screws are compatible with all ATX, mATX, Mini-ITX, and E-ATX cases from all major manufacturers.

Q: Why does the screw have an integrated washer?

A: The washer head distributes the clamping force over a larger area, preventing the screw from pulling through thin sheet metal and protecting the PCB surface and mounting pads from damage during installation.