M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYer
M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYer
M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYer
M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYer
M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYer
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M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYerM3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYerM3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYerM3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYerM3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener - HomeDIYer

M3x20mm Aluminum Knurled Thumb Screw — Anodized, 10 Colors, Computer Case Fastener

HomeDIYer
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By HomeDIYer®

Price:
$9.42 USD
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In stock (500 units), ready to be shipped

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Description

M3x20mm Aluminum Knurled Thumb Screws — Tool-Free Panel Fastening in 10 Anodized Colors

Swapping a side panel or securing a drive bay cover shouldn't require hunting for a screwdriver. These M3x20mm aluminum knurled thumb screws are built for PC builders, modders, and electronics DIYers who want fast, tool-free access to their enclosures — and want their hardware to look the part while doing it. Available in 10 anodized colors, they let you match or accent your build's color scheme without sacrificing function.

Each screw is machined from aluminum with an anodized finish and features a flat knurled head for a secure finger grip. The thread is M3 metric coarse, 20mm (≈25/32") in length, compatible with standard M3 standoffs and threaded panels. Pack quantities of 2, 4, 6, and 8 pieces let you order exactly what your build requires. Colors available: Black, Silver, Golden, Wine Red, Rose Red, Royal Blue, Sky Blue, Green, Purple, and Orange.

Typical use cases include computer case side panel fastening for ATX and Micro-ATX builds, custom PC chassis and open-frame rig assembly, electronics enclosure access panels, and 3D printer frame covers where M3 aluminum thumb screws with color accents are a popular finishing touch.

🔩 Compatibility: M3 metric coarse thread — fits standard M3 standoffs, threaded inserts, and tapped panels used in ATX/Micro-ATX/Mini-ITX cases, electronics enclosures, and DIY chassis builds.

✅ Key Features of These M3 Aluminum Knurled Thumb Screws

  • 🎨10 Anodized Color Options — Choose from Black, Silver, Golden, Wine Red, Rose Red, Royal Blue, Sky Blue, Green, Purple, and Orange to match or accent your PC build or electronics enclosure color scheme.
  • 🖐️Knurled Flat Head for Tool-Free Use — The wide knurled disc head gives your fingers enough grip to tighten and loosen without a screwdriver, making panel swaps faster during computer case maintenance or modding.
  • ⚖️Lightweight Aluminum Construction — Aluminum is significantly lighter than steel, reducing unnecessary weight in weight-sensitive builds while still providing adequate clamping force for panel fastening applications.
  • 🛡️Anodized Surface Finish — The anodized coating adds a layer of corrosion resistance and color durability beyond bare aluminum, helping the finish hold up through repeated panel removal and reinstallation cycles.
  • 📦Flexible Pack Quantities (2–8 Pcs) — Order 2 pcs for a single panel, 4 pcs for both sides of a standard case, or 6–8 pcs for builds with multiple removable panels or when keeping spares on hand.
  • 📐Standard M3 Thread for Wide Compatibility — The M3 metric coarse thread is the most common size in PC cases, 3D printer frames, and electronics enclosures, ensuring these screws thread directly into existing standoffs without adapters.

📐 Technical Specifications — M3 Aluminum Flat Knurled Thumb Screws

Thread Size M3
Length 20mm (≈25/32")
Thread Type Metric Coarse
Head Style Flat / Disc Head, Knurled Edge
Material Aluminum (Anodized)
Available Colors Black, Silver, Golden, Wine Red, Rose Red, Royal Blue, Sky Blue, Green, Purple, Orange
Pack Quantity Options 2, 4, 6, 8 Pcs
Head Diameter See variant options
Drive Type Knurled (finger-operated, no driver slot)
Thread Pitch See variant options
Finish Anodized (color per variant)
Typical Application PC case panels, electronics enclosures, 3D printer frames, DIY chassis builds
Country of Origin Contact us to confirm
⚠️ Note: Verify your case or enclosure uses M3 standoffs before ordering. The 20mm length is longer than standard panel thumb screws — confirm your thread engagement depth to ensure proper fit.

❓ Frequently Asked Questions

What size are these thumb screws and what do they fit?

These are M3x20mm thumb screws with a standard M3 metric coarse thread. They are compatible with any M3-threaded standoff, panel, or enclosure — including most ATX, Micro-ATX, and Mini-ITX computer cases, as well as electronics enclosures and DIY chassis builds.

Is 20mm the right length for a standard PC case panel?

For most computer case side panels and drive bay covers, 20mm (≈25/32") is generally longer than a typical panel thumb screw, which is usually 6–10mm. The 20mm length is typically used when threading through thicker material, stacked panels, or custom chassis builds with deeper thread engagement. Measure your panel thickness and standoff depth before ordering to confirm fit.

How strong are aluminum thumb screws compared to steel?

Aluminum thumb screws are lighter than steel and generally sufficient for panel fastening and light-duty clamping. They are not intended for high-torque or structural fastening. For applications requiring higher shear or tensile strength, a steel thumb screw is typically the better choice.

Are these suitable for outdoor use or humid environments?

The anodized finish provides a layer of corrosion resistance beyond bare aluminum, making these screws generally suitable for indoor and light-humidity environments. For prolonged outdoor exposure or highly corrosive conditions, stainless steel thumb screws are a more appropriate choice.

Do the colors match standard PC case aesthetics?

These screws are available in 10 anodized colors — Black, Silver, Golden, Wine Red, Rose Red, Royal Blue, Sky Blue, Green, Purple, and Orange — making them a popular choice for custom PC builds, RGB-themed rigs, and color-coordinated electronics enclosures. Color accuracy may vary slightly between monitor displays and the actual product.

Do I need any tools to install these thumb screws?

No tools are required for typical installation. The knurled flat head is designed for finger-tightening, allowing quick panel removal and reinstallation without a screwdriver. If extra torque is needed, a coin can be pressed against the knurled edge for additional leverage.

Which pack size should I order?

Most standard ATX side panels use 2–3 thumb screws per panel, so the 2-pack is generally sufficient for a single panel replacement. The 4-pack covers both side panels on most cases. The 6- and 8-pack options are useful for builds with multiple removable panels, drive bays, or when you want spares on hand.

Can I use these in 3D printer frames or electronics enclosures?

Yes. M3 is one of the most common thread sizes in 3D printer frames, electronics enclosures, and DIY chassis builds. The 20mm length provides deeper thread engagement than shorter thumb screws, making these a practical choice for thicker panels or stacked assemblies in those applications.

🛒 Select your color and quantity above, then add to cart — ships from our US warehouse.

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