Fan screws are one of the most commonly replaced fasteners inside a PC case, yet most builders grab whatever came in the motherboard box and hope for the best. When those screws strip, corrode, or simply vanish mid-build, the result is a wobbly 120mm fan that rattles against the chassis or a cooler that shifts under thermal load. The problem is not exotic: threads bind poorly in soft aluminum frames, rubber washers compress unevenly, and cheap zinc coatings flake after a single reinstallation.
What separates a good set of pc fan screws from a mediocre one comes down to three things — thread form consistency, material hardness, and head geometry that tolerates repeated torque without camming out. This roundup for 2026 compares eight widely available options on published specifications and verified owner feedback, covering everything from bare-bones replacement packs to multi-thread kits that handle motherboard standoffs, SSD brackets, and fan mounts in a single box.
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Top 3 picks at a glance
Quick Picks
| Product | Best For | Price |
|---|---|---|
| Easycargo 50-Pack | Replacing lost fan screws across multiple sizes | $4.99 |
| Kernmax 507-Piece Kit | Full DIY PC builds needing every fastener type | $8.49 |
| 30PCS Tapping Screw Kit | Builders who want both long and short options | $5.99 |
| Persberg 100-Pack | High-volume builds and repair shops | $5.49 |
| 20-Pack Universal | Low-cost emergency replacement | $3.99 |
| MroMax 34 Sets | Pre-drilled metal cases needing grommet pairs | $7.59 |
| 400PCS Assortment Kit | Shops handling mixed motherboard and fan work | $8.09 |
| 80Pcs AIO/Case Kit | Liquid cooler mounting with mixed thread needs | $6.99 |
How We Picked
We filtered this list on four criteria: thread-spec accuracy against published fan-mount standards, corrosion resistance relative to price, quantity-to-cost ratio for builders who lose screws frequently, and head design that tolerates a manual screwdriver without stripping. Products that lacked clear thread designation or sold unsealed bulk lots without size labeling were excluded, since mislabeled fasteners cause more headaches than they solve.
The 8 Best PC Fan Screws in 2026
Easycargo 50-Pack
This is the most straightforward pc fan screws option for someone who simply needs to replace a lost fan bolt and does not care about anything beyond that. The listing covers six common sizes from 60mm through 140mm, and at fifty pieces per pack you will not reorder this item for several builds. The black finish hides fingerprints and blends with dark interior panels.
- Pro: Six-size compatibility in one purchase eliminates guessing which fan you will need to mount next.
- Pro: At $4.99 the per-screw cost is among the lowest in the roundup.
- Con: No long-thread option for thick radiator brackets or dual-fan stacks.
Skip this if you also mount hard drives or need motherboard standoffs; buy it as a drawer-filler for fan swaps.
Kernmax 507-Piece Kit
The Kernmax kit is designed for the person building a PC from scratch who does not want to hunt for individual fastener types. With 507 pieces spanning motherboard standoffs, SSD screws, fan bolts, and CD-ROM mounts, it functions as a one-box hardware solution for a complete build. Owner feedback highlights the compartmentalized case as a key quality-of-life feature.
- Pro: Covers every fastener category a DIY builder encounters in a single chassis assembly.
- Pro: The plastic organizer keeps threads from cross-contaminating, reducing mis-screws during assembly.
- Con: Fan screws represent a small fraction of the total count, making it overkill if you only need fan bolts.
Skip this if you already have a motherboard hardware bag and need only replacement fan screws.
30PCS Tapping Screw Kit
Pairing fifteen #6-32x30mm long tapping screws with fifteen M5x10mm short screws, this kit addresses two distinct mounting scenarios in one purchase. The longer #6-32 threads suit AIO radiator brackets and thick metal fan mounts, while the M5x10 bolts handle standard plastic and thin-metal fan frames. Stainless steel construction resists rust in humid environments.
- Pro: The dual-thread approach eliminates the need for two separate purchases for different fan types.
- Pro: Stainless steel holds threads better than zinc-plated alternatives under repeated install-remove cycles.
- Con: Fifteen screws of each size means you cannot complete a three-fan setup with the long variant without leftovers being critical.
Skip this if your build uses only one thread standard across all fans.
Persberg 100-Pack
One hundred M5x10mm black screws in a single bag makes this the default choice for repair shops or enthusiasts who cycle through many builds. The size fits every fan from 70mm through 140mm, so compatibility is not a concern for standard chassis installations. At $5.49 the bulk count keeps per-unit cost very competitive.
- Pro: A full hundred screws means you will never run short mid-build, even with losses in carpet or behind drive cages.
- Pro: Single-size simplicity removes any chance of grabbing the wrong thread during a quick swap.
- Con: No long-thread option for radiator or dual-fan-stack applications.
Skip this if you need #6-32 threads for liquid cooler mounting hardware.
20-Pack Universal
At $3.99 this twenty-screw pack is the cheapest entry point in the roundup, fitting 70mm through 140mm fans with standard M5 threads. It suits the builder who lost two screws behind the case and needs an immediate, low-cost replacement without committing to a larger purchase.
- Pro: Lowest total cost of any option, making it ideal for one-time emergency purchases.
- Pro: Broad size compatibility from 70mm to 140mm covers nearly every consumer fan.
- Con: Twenty screws is a thin margin if you are building a three-fan intake and two-fan exhaust configuration.
Skip this if you regularly build or repair systems and want a long-term supply.
MroMax 34 Sets
MroMax packages thirty-four matched screw-and-grommet sets in black tone, targeting cases with pre-drilled metal fan mounts where rubber dampeners are required. The grommet pair reduces vibration transfer into the chassis, which matters for silent builds where even minor panel resonance becomes audible.
- Pro: Included rubber grommets provide anti-vibration mounting without a separate purchase.
- Pro: Thirty-four sets allow full multi-fan builds with spares for reinstallation during cable management.
- Con: The grommet approach adds height that can interfere with tight clearance between fans and drive cages.
Skip this if your case uses screw-through plastic mounts without grommet slots.
400PCS Assortment Kit
The 400-piece kit mirrors the Kernmax approach with even greater breadth, covering motherboard standoffs, HDD and SSD screws, fan bolts, power supply mounts, and GPU bracket hardware. It is built for a workshop environment where fastener types change from one job to the next and having every size on the bench saves trips to a store.
- Pro: Universal coverage across all major PC chassis fastener categories in one purchase.
- Pro: At $8.09 the per-screw cost is extremely low given the total count.
- Con: The volume makes it impractical for a single build, and excess screws tend to scatter in a drawer.
Skip this if you are a casual builder who only touches one system per year.
80Pcs AIO/Case Kit
Thirty #6-32x30mm screws and fifty M5x10mm screws serve the builder running both an AIO liquid cooler and multiple case fans. The long #6-32 threads engage radiator mounting plates securely, while the M5 bolts handle standard case fan frames. At $6.99 the split-thread configuration saves buying two separate packs.
- Pro: Correctly addresses the dual-thread requirement common in AIO builds without compromise on either size.
- Pro: Fifty short screws provide ample supply for a five-fan chassis layout.
- Con: Only thirty long screws limits you to ten radiator brackets, tight for multi-radiator custom loops.
Skip this if your build uses only plastic-frame fans and no liquid cooling hardware.
Buying Guide
Thread Type and Length
Standard case fans use M5x10mm screws that thread directly into plastic or thin-metal mounts. Radiator fans and some thick metal brackets require #6-32x30mm screws that pass through a grommet and anchor into a plate. Mismatching these two forms is the most common source of stripped threads and rattling fans, so confirm your mounting method before ordering.
Material and Coating
Zinc-plated steel screws are the default at low prices and will hold adequately for a single installation cycle. Stainless steel resists corrosion in humid climates and tolerates repeated removal without thread degradation. Black oxide finishes are cosmetic but help hide screws in dark-themed builds; they add negligible structural benefit over plain zinc.
Quantity Versus Scattering Risk
Fan screws are small enough to disappear into carpet fibers, fall behind motherboard trays, or roll off a workbench. Buying a pack with at least twice the number you expect to need eliminates mid-build trips to the store. Repair shops benefit from hundred-screw or larger bulk packs, while single-build users can manage with a twenty-pack if they work over a clean surface.
Our Verdict
For most builders the Persberg 100-Pack is the best single purchase: standard M5 thread, enough screws to never run short, and a price that undercuts most smaller packs on a per-unit basis. If budget is the only priority and you need a handful of replacements tonight, the 20-Pack Universal at $3.99 is the minimum viable option. However, if your build includes an AIO cooler alongside case fans, the 80Pcs AIO/Case Kit wins because it provides both thread standards in quantities matched to a typical mid-tower layout.
FAQ
Are PC fan screws universal across all sizes?
Almost, but not entirely. Fans from 70mm to 140mm share the same M5 thread diameter and pitch, so a single screw type fits all of them. The 60mm and 80mm variants sometimes use slightly shorter thread engagement, but the head and shaft dimensions remain identical.
What is the difference between M5 and #6-32 fan screws?
M5 screws thread directly into plastic or metal fan mounts and are shorter, typically 10mm. #6-32 screws are longer at 30mm and pass through rubber grommets before anchoring into a metal plate, making them the standard for AIO radiators and thick case brackets.
Can I reuse fan screws from a previous build?
Yes, provided the threads show no cross-threading or burring. Reused zinc-plated screws may seize if corrosion has begun, so applying a drop of light oil to the threads before reinstalling prevents them from binding inside a plastic mount.
Do fan screws affect cooling performance?
Indirectly. A poorly threaded or loose screw allows the fan frame to vibrate against the chassis, which transfers noise and can shift the fan blade out of alignment with the filter or heatsink. Properly seated screws with intact grommets keep airflow directed and vibration minimal.
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