PC Case Fan Screws Kit – M3.5 M4 M5 Fan Mounting Screws with Nuts & Anti - Vibration Washers - HomeDIYer

Roll over image to zoom in Click on image to zoom

PC Case Fan Screws Kit – M3.5 M4 M5 Fan Mounting Screws with Nuts & Anti-Vibration Washers

Name: PC Case Fan Screws Kit – M3.5 M4 M5 Fan Mounting Screws with Nuts & Anti-Vibration Washers
Brand: HomeDIYer
Price: 20.45 USD
Availability: InStock

HomeDIYer

No reviews

By HomeDIYer®

Kit: 100pcs M5 Short Self-tapping Fan Screws

Price:

$20.45 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

Share this product

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Quantity Discount Promotion

DIY Expert Support

Get fitment advice & recommendations

Mon-Fri, 8:30AM-8PM

WhatsApp Email

⚡

24-Hour Fast Ship

🚚

Arrives in 3-14 days

🌍

Global Reach

↩️

30-Day Returns

🌱 1 tree planted with every purchase

PC Case Fan Mounting Screws — Stop Fighting Stripped Holes and Fan Rattle

If you have ever stripped a plastic fan mounting hole with an oversized screw or dealt with a buzzing case panel from fan vibration, you know how frustrating PC fan installation can be. This kit is built for PC builders, modders, and system integrators who need reliable, rattle-free fan mounting across a range of fan sizes and case configurations — without reaching for a screwdriver every time.

Each kit is sold individually and contains 100 or 32 pieces, depending on the variant selected. Screw materials are iron with black zinc plating for corrosion resistance. Available variants include: M5 self-tapping short screws (OD 5mm, total length 7mm, thread 10mm) for standard fan holes; M3.5 small-hole long screws (shaft 3.5mm, total length 30mm (approx. 1.18"), thread 20mm, head diameter 8mm) for PSU bays and radiator mounts; M4 long screws with nuts (shaft 4mm, total length 32mm (approx. 1.26"), thread 17mm, head diameter 8mm) for fans 25–32mm thick; M4 long screws with silicone anti-vibration washers for fans 15–28mm thick; extended M4 long screws with nuts (total length 35mm (approx. 1.38"), thread 20mm) for thick 30mm+ fans; and silver M4 long screws with silicone washers in a silver finish.

Typical use cases include mounting 120mm and 140mm case fans to ATX mid-tower and full-tower chassis, securing fans to 240mm and 360mm radiators in AIO or custom loop builds, and replacing lost or stripped screws in PSU bays and front-panel fan mounts — covering the full range of PC radiator fan mounting screws and anti-vibration fan screws for quiet PC builds.

🔧 Compatibility Note: M4 and M5 variants fit standard fan mounting holes (typically 4.5mm diameter) on 80mm–140mm fans. M3.5 screws are for dedicated small-hole positions (PSU bays, some radiator mounts) and are not interchangeable with standard fan holes. Confirm your fan hole diameter before ordering.

✅ Key Features of These PC Fan Mounting Screws

🔩Six Purpose-Built Variants — Each kit targets a specific mounting scenario: self-tapping for quick installs, bolt-and-nut for tool-free hand-tightening, and washer kits for vibration-damped, quiet builds.
🤫Silicone Anti-Vibration Washers — The M4 washer variants include silicone shock-absorbing pads that clamp the fan frame and decouple it from the case panel, reducing resonance hum in quiet PC fan mounting setups.
🛡️Black Zinc Plating — Iron screws with black zinc coating resist oxidation in enclosed case environments, maintaining appearance and thread integrity over time.
✋Tool-Free Installation (M4 and M3.5) — M4 bolt-and-nut kits and M3.5 long screws are designed to be hand-tightened, making fan swaps faster and reducing the risk of over-torquing plastic fan frames.
📐Upgraded Flat Head Design (M3.5) — The M3.5 screws feature an enlarged 8mm flat head that sits flush after installation, covering dust filter edges and fitting radiator sandwich and large-hole case mounts without protruding.
🔄Extended Thread Engagement (M3.5) — The tapered tail and 20mm threaded section allow smooth entry into tight holes and compatibility with a wider range of fan thicknesses compared to older short-thread designs.

📐 Technical Specifications — PC Fan Mounting Screws

Product Type	PC Case Fan Mounting Screws
Available Variants	M5 Self-tapping Short · M3.5 Small-hole Long · M4 Long + Nut · M4 Long + Silicone Washer · Extended M4 Long + Nut · Silver M4 Long + Silicone Washer
M5 Screw Dimensions	OD 5mm · Total length 7mm · Thread section 10mm
M3.5 Screw Dimensions	Shaft 3.5mm · Total length 30mm (approx. 1.18") · Thread 20mm · Head diameter 8mm
M4 Standard Screw Dimensions	Shaft 4mm · Total length 32mm (approx. 1.26") · Thread 17mm · Head diameter 8mm
M4 Extended Screw Dimensions	Shaft 4mm · Total length 35mm (approx. 1.38") · Thread 20mm · Head diameter 8mm
Screw Material	Iron with black zinc anti-rust plating
Washer Material	Silicone (shock-absorbing, anti-vibration)
Head Style	M5: Self-tapping pan head · M3.5 and M4: Flat pan head (8mm diameter)
Drive Style	M5: Phillips (screwdriver required) · M3.5 and M4: Hand-tighten with nut
Compatible Fan Thickness	M4 standard: typically 25–32mm · M4 with washer: typically 15–28mm · M4 extended: typically 30–35mm
Compatible Hole Types	M4 and M5: Standard fan holes (approx. 4.5mm) · M3.5: Small dedicated holes (PSU bays, some radiator mounts)
Quantity per Kit	M5 and M3.5 variants: 100 pcs · M4 variants: 32 pcs (screws + nuts or washers)
Finish Options	Black zinc (all variants) · Silver (M4 washer variant only)
SKU Range	HKTBSMA230001 – HKTBSMA230006

⚠️ Sizing Tip: If you are unsure which variant fits your build, measure your fan's mounting hole diameter and fan body thickness before selecting. Contact us to confirm compatibility with non-standard radiator or case configurations.

❓ Frequently Asked Questions

How do I choose the right screw length for my PC fan?

Measure your fan's thickness first. Standard 25mm fans generally work with M4 32mm long screws. Thicker fans (typically 30–32mm) need the extended M4 35mm screws. For PSU bays or radiator sandwich mounts, the M3.5 30mm screws are typically the right fit. When in doubt, choose the longer option — you can always back off the nut slightly.

Can I tighten these screws without a screwdriver?

Yes — the M4 kits (with nuts) and the M3.5 long screws are designed for hand-tightening. The knurled nuts provide enough grip to secure fans firmly without any tools. The M5 self-tapping screws do require a Phillips screwdriver.

Do the anti-vibration washers actually reduce fan noise?

Yes. The silicone shock-absorbing washers included in the M4 washer kits act as a buffer between the fan frame and the case panel, dampening vibration transmission. This generally reduces low-frequency hum caused by fan resonance, especially noticeable at higher RPMs.

Are these screws compatible with standard 120mm and 140mm PC fans?

Yes. The M4 and M5 variants are designed for standard fan mounting holes (typically 4.5mm diameter) found on 80mm, 92mm, 120mm, and 140mm fans. The M3.5 screws are intended for smaller dedicated holes found in PSU bays and some radiator mounts — they are not interchangeable with standard fan holes.

What is the difference between the M4 with nuts and the M4 with shock-absorbing washers?

Both use the same M4 32mm screw shaft. The nut-only kit provides basic secure mounting for fans 25–32mm thick. The washer kit adds silicone anti-vibration pads that clamp the fan frame, reducing resonance noise — best for fans mounted to thin case panels. The washer kit accommodates fans typically 15–28mm thick due to the washer adding thickness.

Will the M5 self-tapping screws damage my fan mounting holes?

M5 self-tapping screws can slightly widen plastic fan mounting holes over time, especially with repeated removal and reinstallation. They are best suited for one-time or infrequent installations. For builds where fans are swapped regularly, the M4 bolt-and-nut system is generally a more durable long-term choice.

Are these screws suitable for radiator (AIO/custom loop) fan sandwich mounts?

Yes. The M4 long and extended long screws are well-suited for radiator sandwich configurations where a fan is mounted on both sides of a radiator. The extended M4 35mm screws are typically needed for dual-fan sandwich setups. The M3.5 screws are also compatible with many radiator mounting holes — check your radiator's spec sheet to confirm hole diameter.

🛒 Select your kit variant above, then add to cart.

PC Case Fan Screws Kit – M3.5 M4 M5 Fan Mounting Screws with Nuts & Anti-Vibration Washers

Payment & Security

Let customers speak for us

DIY Expert Support

Description

PC Case Fan Mounting Screws — Stop Fighting Stripped Holes and Fan Rattle

✅ Key Features of These PC Fan Mounting Screws

📐 Technical Specifications — PC Fan Mounting Screws

❓ Frequently Asked Questions

PC Case Fan Screws Kit – M3.5 M4 M5 Fan Mounting Screws with Nuts & Anti-Vibration Washers

You may also like

Recently viewed