Are you trying to disassemble your laptop for cleaning, replacing thermal paste or repair, but one of the bolts is tightly stuck to the case? The situation is familiar to many - especially model owners Dell XPS, MacBook Pro (with their star bolts Pentalobe) or budget Acer with soft aluminum body. The reasons can be different: from banal corrosion to factory overtightening of the thread. But the result is the same - the screwdriver spins, the edges of the bolt “lick off”, and panic grows.
Before you grab the pliers or drill (which often ends with a broken body or stripped threads), let's understand the reasons for bolt blocking and safe ways to remove it. In this article - 7 proven methods, from simple (using improvised means) to advanced (for “soured” threaded connections), as well as tool compatibility table with popular laptop models. Important: Some techniques require patience - for example, soaking a bolt in WD-40 may take up to 12 hours.
If you've never taken apart a laptop before, start with preparatory stage — there we will tell you how to avoid mistakes that cause the bolts to “stick” even more. And for those who have already tried to unscrew a bolt and tore off the edges, there is separate section with emergency measures.
Preparation: what to do BEFORE trying to unscrew the bolt
First rule: do not apply maximum force immediately. In 80% of cases, the bolt does not unscrew not because of corrosion, but because of the wrong approach. Start with diagnostics:
- 🔍 Determine Bolt Type: standard cross (
Phillips #00), asterisk (Torx T5/T6), "apple"Pentalobe(in MacBook), or hexagon (Hex 1.5mmin ThinkPad). The wrong screwdriver is the main cause of edge breakage. - 📏 Check the length of the screwdriver: A short tool will not provide enough pressure. For laptops, the optimal length is 5–7 cm.
- 💡 Light up the work area: Use a flashlight or lamp with a magnifying glass. B Lenovo Legion or MSI the bolts are often hidden under stickers or rubber feet.
If the bolt is in an area where liquid has previously been spilled (for example, near a keyboard), there is a high likelihood of oxidation. In this case do not try to unscrew it “dry” - process the connection first.
Before work, remove the laptop battery (if it is removable) or disconnect the power supply. Even when switched off, some models (for example, HP Spectre) can supply voltage to the board when pressing the housing.
| Laptop brand | Bolt type | Recommended screwdriver | Common problem |
|---|---|---|---|
| MacBook Pro/Air (2012–2020) | Pentalobe P5/P6 |
Screwdriver with magnetic tip | Edge breakage due to soft aluminum |
| Dell XPS 13/15 | Torx T5 |
Screwdriver with torque limiter | Bolts overtightened from factory |
| Lenovo ThinkPad | Phillips #00 + Hex 1.5mm |
Set iFixit Pro Tech | Corrosion due to moisture under the keyboard |
| Asus ROG Zephyrus | Torx T6 (security) |
Screwdriver with recess for pin | Anti-twist bolts |
Methods without special tools: what to try first
If the bolt won't come off but the edges are still intact, start with these techniques. They do not require the purchase of additional tools and are safe for the body.
1. “Loosening” method
Suitable for bolts that are “jammed” due to misalignment or dust. Take a screwdriver, insert it firmly into the head of the bolt and lightly rock from side to sidewithout trying to scroll. Then try unscrewing it counterclockwise. Repeat 3-4 times, increasing the amplitude.
2. Rubber pad or eraser
If the screwdriver spins, increase the grip: place a piece on the head of the bolt bicycle camera, eraser or even electrical tape, then press firmly with a screwdriver. Rubber will fill micro-gaps and prevent slipping.
Why does this work?
The rubber acts as a shock absorber, distributing pressure evenly along the edges of the bolt. This method is especially effective for bolts with partially worn edges in laptops. HP Pavilion or Acer Swift>.
3. Heating (for metal bolts)
When heated, metal expands, which can weaken a “sticky” connection. Use hair dryer (maximum temperature) or soldering iron (carefully, without touching the plastic!). Heat the bolt for 20–30 seconds, then immediately try to unscrew it. Do not use open fire (lighter, matches) - this will melt the plastic elements of the case!
- Screwdriver with a set of bits
- Soldering iron
- Hair dryer
- Rubber pad/eraser
- None of the above
4. Impact technique (for tight bolts)
Lightly tapping the screwdriver with a hammer can knock down oxidation. Take a screwdriver, insert it firmly into the bolt and hit the handle 2-3 times (impact force - like driving a small nail). Then try to unscrew it. This method often saves bolts in MSI or Gigabyte, where the thread is tightened in production.
⚠️ Attention: Don't hit the laptop body! Impacts should only be applied to the tool inserted into the bolt. For aluminum housings (MacBook, Xiaomi Mi Notebook) This method is not recommended - there is a high risk of dents.
Chemical methods: how to dissolve “sticky” threads
If mechanical methods do not help, it’s time to move on to the “heavy artillery” - specialized trains. They penetrate into the micro-gaps of the thread and destroy corrosion or oxides.
1. WD-40 or analogues
Classic WD-40 suitable for mild cases. Apply liquid to the bolt (you can use a syringe with a needle for accuracy), wait 10-15 minutes, then try to unscrew it. For difficult cases (for example, bolts in Dell Latitude after contact with coffee) repeat the procedure 2-3 times with an interval of 1 hour.
2. Vinegar or citric acid (for oxidized bolts)
If the bolt is covered with a green coating (oxidation of copper or brass), moisten it 9% vinegar or citric acid solution (1 tsp per 50 ml of water). Leave for 1-2 hours, then wipe with a dry cloth. This method is safe for plastic, but may damage the anodized finish of the case (e.g. Razer Blade).
3. Kerosene or brake fluid
For soured bolts in old laptops (IBM ThinkPad, Sony Vaio) use kerosene or DOT-4 brake fluid. Apply a few drops, wait 30-60 minutes. These substances are more aggressive WD-40, but more effective against rust. After use, rinse the area with alcohol.
Make sure your laptop is turned off and unplugged|
Cover the board around the bolt with foil or tape|
Use gloves - some solvents are corrosive to skin|
After treatment, dry the area with a hairdryer (cold air) for 5–10 minutes-->
⚠️ Attention: Do not use WD-40 or kerosene on bolts located near the screen or keyboard - the liquid may leak and damage the matrix or contacts. For such areas it is better to use gel lubricants (for example, Liqui Moly MoS2).
If the bolt is broken: emergency measures
The worst has happened - the edges of the bolt are “licked” and the screwdriver is spinning? Don't despair. There are several ways to remove a damaged bolt without drilling.
1. Bolt extractor
An extractor (or “twist”) is a special tool with a reverse thread. Drill a hole in the center of the bolt with a diameter corresponding to the extractor (usually 2-3 mm), then screw it in counterclockwise. The bolt should come out with the extractor. Suitable for bolts with a diameter of 3 mm (found in Alienware or MSI GT75).
2. Rubber band + pliers
If the bolt head protrudes above the body, wrap it around rubber band (for example, from a bicycle tube) and tighten with pliers. The rubber will increase friction so you can turn the bolt. The method works for bolts with a diameter of 4 mm.
3. Cutting a new edge
For bolts with a completely worn head, you can cut a new face using needle file or Dremel with cutting wheel. Make a flat notch across the head, then use a flathead screwdriver to remove the bolt. This method requires precision - a mistake can damage the case.
If a bolt breaks flush with the case, do not try to drill it out yourself - the risk of damaging the board is too high. In this case, it is better to contact a service center with micro-soldering equipment.
How to avoid problems in the future: prevention
To prevent the bolts from sticking after assembly, follow these rules:
- 🔧 Use a torque screwdriver (For example, iFixit Mako) with limited torque. For most laptops, 1.5–2.5 Nm is enough.
- 🛠️ Apply anti-corrosion lubricant onto the thread before tightening. Will do
Loctite 222(weak fixation) or graphite lubricant. - 🌡️ Keep your laptop in a dry place. Humidity above 60% accelerates bolt corrosion, especially in metal housings (MacBook, Huawei MateBook).
- 🔄 Disassemble your laptop periodically (once every 1–2 years) for cleaning and checking bolts. This will prevent sticking.
If you frequently disassemble laptops, invest in screwdriver set with magnetic bits (For example, Wiha 72790). The magnet holds the bolt on the screwdriver, preventing it from falling into the housing - and this is one of the main reasons for “jamming” during reassembly.
Alternative methods of disassembly (if the bolt is not unscrewed)
If the bolt still does not budge, it may not need to be unscrewed at all. Consider these options:
1. Partial disassembly
In some models (for example, Lenovo Yoga or HP Envy) you can remove the keyboard or bottom cover without removing all the bolts. Explore service manual for your model on the manufacturer's website or iFixit.
2. Using plastic clips
In laptops Microsoft Surface or Samsung Notebook 9 the case is often held in place by latches. Try to carefully pry off the lid plastic spatula (For example, iFixit Opening Tool) around the perimeter. Sometimes bolts serve only for additional fixation.
3. Contacting service
If a bolt is blocking access to critical components (such as a cooler in Asus ROG Strix), and independent attempts are unsuccessful, it is better to contact the service. The cost of removing one bolt usually does not exceed 500–1000 rubles, but you will avoid the risk of damaging the board.
⚠️ Attention: In laptops with aluminum monoblock housing (MacBook Unibody, Dell XPS 13) attempts to drill a bolt often end in cracks in the body. In such cases, the service may offer replacement of the entire bottom cover (price - from 3,000 rubles).
Frequently asked questions
Can I use superglue to fix a bolt if it keeps coming loose?
No! Superglue (eg. Loctite Super Glue) is not intended for threaded connections. It will fill the threads and make the bolt immovable, and the next time you disassemble it you will have to drill it out. To fix, use anaerobic thread locker (For example, Loctite 243 medium strength).
What to do if the bolt is unscrewed, but the thread remains in the body?
If the threads have "turned" in a plastic or aluminum case, you will need threaded insert (helicoyl). Algorithm of actions:
- Drill the hole to the next standard size (eg M2 to M2.5).
- Apply the thread with a tap.
- Screw in the helicoil using a special tool.
Inserts are suitable for laptops M2×0.4 or M2.5×0.45. You can buy them in radio parts stores or on AliExpress.
Why are MacBook bolts so difficult to remove?
Apple uses penta-head bolts (Pentalobe), which are specifically designed to make DIY repairs more difficult. In addition, the body MacBook made of anodized aluminum, which is softer than steel bolts - so the edges break off more easily. To work with such bolts, you need a hardened steel screwdriver (for example, iFixit Pentalobe P5).
Is it possible to replace a broken bolt with a larger diameter bolt?
Theoretically yes, but in practice this is fraught with problems:
- Increasing the diameter can damage the PCB if the bolt secures it to the chassis.
- In aluminum cases, the new hole will quickly become loose.
- In some models (for example, Lenovo ThinkPad) the bolts have a strictly defined length - a longer bolt can rest against the components of the board.
It is better to restore the original thread using helicoil or insert a bolt with a different type of thread (for example, replace M2.5 on M2.5 fine pitch).
How to unscrew a bolt if it is under the warranty sticker?
If the laptop is under warranty, unscrewing the bolt will void it. Alternatives:
- Contact authorized service center - they can disassemble the laptop without breaking the seals (for example, through the top cover).
- If the warranty has already expired, carefully pry off the sticker plastic spatula and take a photo of it - sometimes services agree to restore the sticker after repair.
- For models HP or Lenovo check for duplicate bolts under the rubber feet - sometimes they can be unscrewed without breaking the seals.