Home Thumb Screws & Security Screws M3 Carbon Steel Round Head PC Case Thumb Screw — Black & Silver, 6–12mm DIY
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M3 Carbon Steel Round Head PC Case Thumb Screw — Black & Silver, 6–12mm DIY

M3 Carbon Steel Round Head PC Case Thumb Screw — Black & Silver, 6–12mm DIY

$6.70 USD
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M3 Carbon Steel Round Head PC Case Thumb Screw — Black & Silver, 6–12mm

Clean, low-profile round head thumb screws for PC case panels and drive brackets. The smooth round knurled head provides a comfortable grip for tool-free installation and removal. Available in black (black zinc plating) and silver (nickel plating) to complement any build.

Key Specifications

Thread Size M3 (metric, 0.5mm pitch)
Length Options 6mm / 8mm / 10mm / 12mm
Material Carbon Steel
Head Style Round knurled head (no recess — hand tighten only)
Drive Hand tighten
Finish Black zinc plating (black) / Nickel plating (silver)
Thread Type Metric machine thread M3×0.5
Origin CN (Mainland China)

Why Choose Keszoox M3 Round Head Thumb Screws?

  • Clean round head aesthetic — no visible recess, ideal for visible panel locations in windowed cases
  • Standard M3 metric thread — fits virtually all ATX, Micro-ATX, and Mini-ITX case standoffs
  • Black and silver options — match your case color scheme or mix for accent styling
  • 4 length variants — 6mm to 12mm for different panel thicknesses and bracket depths
  • Knurled grip — secure hand tightening without slipping

Typical Applications

  • PC case side panel and tempered glass panel fastening
  • Expansion slot cover retention
  • Fan bracket and radiator mounting
  • HDD/SSD bracket fastening
  • DIY computer builds and case modding
  • Replacement for lost or damaged case thumb screws

Compatible With

M3×0.5 metric threaded standoffs and captive nuts in: Fractal Design, Corsair, NZXT, Lian Li, Phanteks, Cooler Master, Antec, Thermaltake, and most ATX/Micro-ATX/Mini-ITX cases. Also compatible with M3 threaded fan mounts and bracket assemblies in standard PC enclosures.

FAQ

Q: What is the difference between this and the slotted Phillips head version?
A: This round head version has a smooth knurled surface with no driver recess — hand tighten only. The slotted Phillips version adds a cross recess so you can also use a screwdriver. Choose round head for a cleaner look; choose slotted Phillips for screwdriver compatibility.

Q: Are these the same thread as 6#-32 UNC PC case screws?
A: No. These are M3 metric (0.5mm pitch). 6#-32 UNC is an imperial thread used in older ATX cases and server racks. Check your case specification before ordering.

Q: Which length should I choose for a standard side panel?
A: 6mm or 8mm is sufficient for most side panel applications. Use 10–12mm for thicker brackets or when additional thread engagement is needed.

Package Contents

  • M3 Carbon Steel Round Head Thumb Screws (quantity and length per selected variant)

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