M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts
M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts
M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts
M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts
M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts
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M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob BoltsM3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob BoltsM3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob BoltsM3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob BoltsM3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts

M3.5x25mm Aluminium Knurled Flat Head Thumb Screws for PC Case — Hand Grip Knob Bolts

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Beschreibung

M3.5x25mm Aluminium Knurled Thumb Screws — Tool-Free Panel Fastening for PC Cases & Electronics

If you've ever reached for a screwdriver just to swap a PC side panel or access an enclosure, you know how quickly that becomes a nuisance. These M3.5x25mm aluminium knurled thumb screws are designed for builders, modders, and technicians who open their cases regularly and want a faster, cleaner solution — no tools required.

Each screw features a flat knurled head for a secure finger grip, machined from aluminium alloy with an anodized color finish. The thread diameter is M3.5 with a 25mm (≈0.98") shank length, available in pack quantities of 1, 4, 10, 20, 50, and 100 pieces. Ten color options — including Black, Silver, Golden, Royal Blue, and Red Wine — let you match or accent your build's aesthetic.

Typical use cases include PC case side panel retention, small electronics enclosures, DIY computer builds with tempered glass panels, and any application where frequent hand-access is needed. Long-tail searches like "M3.5 thumb screws for PC case" and "knurled hand grip bolts for computer case" reflect exactly the problem these solve.

ℹ️ Compatibility Note: These screws use an M3.5 metric thread. Please verify your PC case or enclosure uses M3.5 threaded holes before ordering — M3 and M3.5 are not interchangeable. Check your case manual or measure your existing screws if unsure.

✅ Key Features of These M3.5 Aluminium Knurled Thumb Screws

  • ✋Tool-Free Hand Tightening — The wide knurled flat head provides enough grip surface to finger-tighten securely, making these ideal for PC case panels and enclosures you access frequently.
  • 🎨10 Anodized Color Options — Choose from Black, Silver, Golden, Royal Blue, Sky Blue, Red Wine, Pink, Green, Purple, or Brown & Orange to match your build theme or color scheme.
  • ⚖️Lightweight Aluminium Alloy Construction — Aluminium keeps weight minimal compared to steel fasteners — a practical advantage in weight-conscious builds or portable enclosures.
  • 📐Consistent M3.5×25mm Dimensions — Machined to a uniform 25mm (≈0.98") shank length and M3.5 thread diameter, compatible with standard ATX case panel fastener points that use M3.5 threading.
  • 📦Flexible Pack Quantities — Available in 1, 4, 10, 20, 50, and 100-piece packs, so you can buy exactly what you need — from a single replacement to workshop bulk stock.
  • 🔩Flat Head Profile — The flat head design sits flush or near-flush against panel surfaces, avoiding protrusions that could snag cables or interfere with adjacent components.

📐 Technical Specifications — M3.5 Knurled Flat Head Thumb Screws

Thread Diameter M3.5 (metric)
Shank Length 25mm (≈0.98")
Head Style Flat / Knurled (hand grip)
Drive Style Hand-tighten (no driver required)
Material Aluminium alloy
Finish Anodized (color options available)
Available Colors Black, Silver, Golden, Royal Blue, Sky Blue, Red Wine, Pink, Green, Purple, Brown & Orange
Pack Quantities 1, 4, 10, 20, 50, 100 pcs
Thread Standard Metric M3.5 — see variant options to confirm compatibility
Thread Pitch See variant options or contact us to confirm
Head Diameter See variant options or contact us to confirm
Primary Application PC case panels, electronics enclosures, DIY builds
⚠️ Heads up: Thread pitch and exact head diameter are not listed on the packaging. If your application requires a specific pitch (e.g., 0.6mm), please contact us before ordering so we can confirm compatibility.

❓ Frequently Asked Questions

What length is 25mm in inches, and how do I choose the right length?

25mm is approximately 1 inch (≈0.98"). For PC case panels, this length is typically sufficient to pass through a standard side panel and engage the standoff or threaded insert. If your panel is thicker than usual, measure the material thickness and add at least 5–8mm of thread engagement to confirm fit before ordering.

How strong are these thumb screws — can they hold a PC side panel securely?

Aluminium thumb screws are generally suitable for light-duty panel retention such as PC side panels, small enclosures, and electronics covers. They are not intended for high-torque or structural load-bearing applications. For PC case use, they typically provide adequate clamping force when hand-tightened to finger-tight.

Are these thumb screws suitable for outdoor or humid environments?

Aluminium has natural oxidation resistance, but these screws are primarily designed for indoor electronics use. For outdoor or high-humidity environments, additional corrosion protection is generally recommended. The anodized color finish does provide a degree of surface protection against minor moisture exposure.

What thread standard do these use — are they compatible with standard PC case standoffs?

These screws use an M3.5 metric thread. Many standard ATX PC case thumbscrew holes use M3 or M3.5 threads depending on the manufacturer. Please verify your case's thread specification before ordering — M3 and M3.5 are not interchangeable. Check your case manual or measure an existing screw if you're unsure.

Can I tighten these by hand without any tools?

Yes. The knurled grip pattern on the flat head is specifically designed for finger-tightening without a screwdriver. This makes them ideal for panels you open frequently, such as PC side panels, drive bay covers, or access hatches on electronics enclosures.

Which color should I choose for my PC build?

These screws are available in 10 colors: Red Wine, Pink, Golden, Royal Blue, Sky Blue, Black, Silver, Green, Purple, and Brown & Orange. Black and Silver are the most common choices for standard builds. Colored options are popular for custom or themed builds where the screws are visible through a tempered glass side panel.

How many screws do I need for a typical PC case?

Most ATX mid-tower cases use 2–4 thumb screws per side panel, so a 4-pack is typically sufficient for one panel. If you are securing both side panels or multiple access covers, a 10-pack is generally recommended. Larger packs (20, 50, 100) are suited for workshop stock, repair shops, or multi-system builds.

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

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