How to Remove a Screw With No Head
Eight proven methods for extracting a snapped, stripped, or corroded headless screw from wood, metal, plasterboard, and masonry. Ranked from easiest to most involved, with step-by-step instructions for each.
A screw with no head is one of the most frustrating problems in any trade or DIY job. Whether the head has snapped clean off under too much torque, the slot has been chewed beyond recognition by a slipping screwdriver, or years of corrosion have left nothing but a flush stub of metal, the result is the same: you cannot get a conventional driver onto it, and it is not coming out without a plan.
The good news is that headless screws are rarely truly stuck. In the vast majority of cases, one of the methods in this guide will have it out within minutes. The key is to work through them in the right order. Start with the least invasive approach and only escalate to more aggressive techniques if simpler ones have failed. Attacking a flush screw stub with a drill immediately is a common mistake that damages the surrounding material and makes the job harder than it needs to be.
This guide covers all common scenarios: screws that have snapped and are sitting slightly proud of the surface, screws that are completely flush, screws in wood, metal, plasterboard, and masonry. Work through the methods in order and you will find the right approach for your specific situation.
Understanding what caused the head to fail in the first place helps you choose the right extraction method and the right level of force. The cause affects how tight the screw is in the material, how much shank is exposed above the surface, and how much resistance you can expect when you try to move it.
There are five common causes. Over-torquing during installation is the most frequent in the UK, where cordless impact drivers are now standard on most sites. A driver set to a high clutch setting will strip or snap a small gauge screw before the operator has time to react, particularly in hardwood or near the edge of a board where lateral stress compounds the torque. Slot stripping from an incorrectly sized or worn driver bit is equally common and usually results in a head that is physically intact but has no usable drive surface left. Corrosion and rust are the dominant causes in external applications, older properties, and anywhere moisture is present for extended periods. Physical snapping under lateral load during use is less common but results in the cleanest break and the most accessible shank stub. Previous failed extraction attempts are the most problematic scenario, as they often leave the shank damaged in unpredictable ways and the surrounding material partially compromised.
| Cause | What it Means for Extraction | Best Starting Method |
|---|---|---|
| Over-torqued during installation | Screw is fully driven and tight. Shank likely flush or below surface. | Screw extractor bit (Method 4) |
| Stripped slot from wrong driver | Screw may be only partially driven. Some head still present but unusable. | Rubber band (Method 1) or new slot (Method 2) |
| Corrosion and rust | Screw likely seized in the material. Penetrating oil is required before any attempt. | Oil first, then Mole grips (Method 3) or extractor (Method 4) |
| Physical snapping under load | Clean break, often with shank proud of surface by 2mm or more. | Mole grips immediately (Method 3) |
| Previous failed extraction attempt | Shank may be damaged or deformed. Surrounding material may be compromised. | Left-hand drill bit (Method 5) or drill out (Method 7) |
Take two minutes to assess the screw before picking up a tool. Rushing into an extraction attempt without understanding what you are dealing with is the most common reason jobs escalate from a quick five-minute fix to a full repair task involving filler, new timber, or a thread insert.
If the screw or surrounding metal shows any rust, discolouration, or verdigris, apply a penetrating lubricant such as Plus Gas, WD-40 Specialist Penetrant, or Wurth Rost Off. Leave it for a minimum of 15 minutes and ideally overnight for badly corroded screws. Attempting to remove a seized screw without lubrication is the single most common reason shanks snap during extraction, turning a manageable job into a significantly harder one.
This single measurement determines which methods are available to you. Use a steel rule rather than guessing.
| Material | Tolerance for Aggressive Methods | Key Consideration |
|---|---|---|
| Softwood (pine, spruce) | High | Accepts drilling out well. Holes can be dowelled and re-drilled. Most forgiving material to work in. |
| Hardwood (oak, ash, teak) | Moderate to high | Dense and unforgiving of off-centre drilling. Use a centre punch. Extractors work well here. |
| MDF and chipboard | Moderate | Drilling out enlarges the hole unpredictably. Plugging with a wooden dowel and PVA is the standard repair after drill-out. |
| Steel and mild steel | High | Use penetrating oil first. Left-hand bits work excellently. Drilled-out holes can be tapped for a thread insert. |
| Aluminium | Moderate | Soft and prone to tool wander. Centre punch is essential. Keep drill speed low to avoid galling. |
| Plasterboard | Low | Most invasive methods leave visible damage. Always attempt Methods 1 or 2 first. Avoid drilling out where possible. |
| Masonry (via wall plug) | Moderate | The screw is in a plastic plug. The plug itself can often be drilled out entirely and replaced with a new plug and screw nearby. |
Before drilling into any wall, floor, or ceiling, use a cable and pipe detector. This is non-negotiable on older UK properties where cables may not follow expected routes. A basic detector costs under £15 and takes thirty seconds to use. A damaged cable or pierced pipe will cost significantly more to repair than the time saved by skipping the check.
This is always the first method to try when the screw head is still physically present but the drive recess has been stripped or chewed. It costs nothing, takes two minutes, and leaves the surrounding material completely untouched if it works.
The principle is simple: a rubber band placed between the screwdriver tip and the damaged drive recess fills the gaps left by stripping and provides enough additional friction and contact area to transfer rotational torque to whatever drive surface remains. A wide, thick rubber band works best. Steel wool, a piece of fine abrasive mesh, or a folded strip of sandpaper pressed into the slot can also work using the same principle.
Place the rubber band flat over the screw head so it covers the drive recess completely. Press the correct size screwdriver firmly through the rubber band and into the slot beneath it. The downward pressure is the critical variable here. Apply as much firm, consistent downward force as you can manage throughout the entire turn. Turn slowly anti-clockwise. If the driver begins to slip, increase downward pressure rather than rotational force. Once the screw begins to move, maintain steady pressure and remove it at a consistent pace without rushing.
This method works on Phillips, Pozidriv, and slotted heads. It will not work if the drive recess is completely destroyed and has no remaining walls for the rubber to grip against. If two attempts produce no movement, move on to Method 2 rather than continuing to try.
- Select a wide, thick rubber band from your tool bag or find one in the kitchen
- Place it flat over the screw head, covering the drive recess completely
- Press the correct size and type of screwdriver through the rubber band firmly into the slot
- Apply maximum firm downward pressure throughout the entire turn
- Turn slowly and steadily anti-clockwise without jerking or rushing
- If the driver slips, increase downward pressure rather than rotational speed
- Once the screw begins to move, maintain consistent pressure to the end
- If two attempts produce no movement at all, move to Method 2
When the original drive recess is completely destroyed and the rubber band method cannot find anything to grip, cutting a fresh flat-head slot gives you a clean new surface to work against. A flat-blade screwdriver driving into a freshly cut slot can apply considerable torque, and this method is highly effective on screws that are only moderately tight or that were stripped during installation rather than through corrosion.
An oscillating multi-tool fitted with a metal cutting blade is the best tool for this job. It provides excellent control over depth and width and can be used on flush or slightly recessed heads with care. A junior hacksaw or a standard hacksaw with a fine-tooth blade works well on screws whose heads are standing proud of the surface. A Dremel-type rotary tool with a cutting disc is also effective on exposed heads.
The slot needs to be approximately 1mm wide and no deeper than half the thickness of the screw head. Too shallow and the screwdriver will ride out over the head; too deep and you weaken the shank at the head junction, increasing the risk of a second snap. After cutting, select the largest flat-blade screwdriver that fits the slot without rocking side to side. Apply firm, consistent downward pressure throughout the turn and proceed slowly anti-clockwise.
On painted or finished metal surfaces, apply two or three layers of masking tape around the screw head before cutting. This protects the surrounding finish from blade slip and keeps metal filings contained in one place for easy clean-up. Peel it away cleanly once the screw is out.
- Apply masking tape around the screw head if the surrounding surface needs protection
- Fit a metal cutting blade into your multi-tool or select a fine-tooth hacksaw blade
- Cut a slot across the diameter of the screw head, approximately 1mm wide
- Keep depth to no more than half the head thickness
- Clear any swarf or debris from the slot with a stiff brush
- Select the largest flat-blade screwdriver that fits the slot without rocking
- Apply firm downward pressure and turn slowly anti-clockwise
When a screw snaps cleanly and leaves a visible stub of shank above the surface, locking pliers are often the fastest and simplest solution available. Locking pliers, widely known in the UK as Mole grips after the original British brand, grip the shank by direct clamping force and allow considerable torque to be applied through a short lever arm without any drilling or cutting required.
Adjust the jaw width so the pliers grip the shank as tightly as possible. Position the jaws as close to the surface as you can manage. Lock them firmly onto the shank. Turn anti-clockwise using short, controlled movements rather than long sweeping arcs. Short movements give you better control and reduce the chance of the pliers slipping and scoring the surrounding surface.
If the screw does not move on the first attempt, apply penetrating oil at the base of the shank where it meets the material, wait ten minutes, and try again. Do not simply apply more force on the first attempt. The most common failure mode with Mole grips is the operator increasing rotational force when the screw is seized, which causes the pliers to slip and rounds off whatever shank remains, making subsequent grip attempts progressively harder. Apply more oil and more patience first.
For screws that have snapped in metal components, particularly steel fixings in steel or cast iron, a heat gun applied briefly to the surrounding material (not the screw itself) can break the corrosion bond before the pliers are applied. Allow the material to cool partially before attempting to grip so the metal has contracted back around the shank.
A screw extractor is a purpose-built tool for exactly this problem. One end carries a reverse-spiral flute that bites into the screw shank when turned anti-clockwise. The other end is a standard hex shank that fits a drill chuck or T-handle. When the extractor bites, it grips tighter as it turns, transferring rotational force directly to the screw shank and walking it out of the material.
A quality five-piece set covering screws from M3 to M12 costs between £8 and £20 and is an item worth having in any trade toolkit. The method requires drilling a pilot hole into the screw shank before the extractor is used. The pilot hole size is specified on the extractor packaging and varies by extractor size. Getting this right matters: the pilot hole must be centred on the shank axis and the correct diameter for the extractor to bite effectively.
Use a centre punch and hammer to mark the exact centre of the screw shank before drilling. This is the most important step in the entire process. An off-centre pilot hole puts lateral stress on the extractor bit as it turns, which can cause the bit to snap inside the shank. Screw extractor bits are made from hardened steel and are extremely difficult to remove once broken. A broken extractor inside a screw shank turns a straightforward job into a very difficult one. Take thirty seconds to centre-punch accurately and this risk is largely eliminated.
Once the pilot hole is drilled, set the drill to reverse (anti-clockwise) and run at low speed. Insert the extractor and apply firm, consistent downward pressure. The bit will bite and the screw will begin to turn. Maintain pressure and do not rush. Let the extractor do the work at its own pace rather than forcing the drill speed.
An off-centre pilot hole is the most common cause of a snapped extractor bit. A snapped extractor inside a screw shank is made of harder steel than any standard drill bit and cannot be drilled out conventionally. Always use a centre punch to mark the exact centre of the screw shank before drilling. This one step takes thirty seconds and eliminates the main risk associated with this method.
- Select the correct size extractor for your screw and check the required pilot hole diameter on the packaging
- Use a centre punch and hammer to mark the exact centre of the screw shank
- Drill the pilot hole to the specified diameter and depth at low speed
- Clear all swarf from the hole before inserting the extractor
- Set the drill to reverse (anti-clockwise) and fit the extractor into the chuck
- Insert the extractor tip into the pilot hole and apply firm downward pressure
- Run the drill at low speed until the extractor bites and the screw begins to turn
- Maintain consistent downward pressure throughout; do not rush
- Once free, remove the screw and clean up any remaining debris from the hole
Left-hand drill bits, also called reverse-spiral bits, are ground with a flute that cuts when rotating anti-clockwise rather than clockwise. When used at low speed in reverse, they have a useful tendency to catch and unscrew a stuck screw before the drilling process is complete. In many cases, particularly with steel screws that are not severely corroded, the bit bites into the shank and the screw comes out during drilling without ever needing an extractor at all.
Select a left-hand bit that is slightly smaller than the shank diameter. Apply penetrating oil if there is any corrosion visible. Set the drill to reverse and run at low to medium speed with consistent downward pressure. If the bit catches and the screw begins to turn with it, allow it to unscrew fully before stopping the drill. If the bit drills through without catching, you now have a centred hole ready for a screw extractor as the follow-up step.
Left-hand bits are particularly effective on machine screws in metal-to-metal applications, on stainless steel fixings, and on bolts with failed heads. They are less commonly used for wood screws as the risk of the bit catching and snatching is higher in softer materials, though they will still work. A basic set of five left-hand bits in common sizes costs between £10 and £25 and is worth having alongside an extractor set.
Apply a small amount of cutting fluid or thin oil to the drill bit before use on metal. This reduces heat build-up, extends bit life, and prevents the bit from seizing in the hole. Keep drill speed low throughout: high speed generates heat that hardens the steel around the hole and makes the job progressively more difficult.
Attaching a nut to the exposed shank gives you a hex surface for a spanner or socket set to work against. A spanner on a hex nut can apply considerably more torque than Mole grips on a round shank, and does so in a controlled, measured way that reduces the risk of slipping and damaging the surrounding material. This method is the preferred approach for mechanics and fabricators dealing with seized fasteners in engine components, chassis work, and structural metalwork.
For welding: tack weld an appropriate size nut directly onto the top of the screw shank using a MIG or TIG welder. The weld only needs to be strong enough to hold for one removal attempt. Once the weld has cooled fully, fit a spanner of the correct size onto the nut and turn anti-clockwise with firm, steady pressure. Apply penetrating oil at the base of the shank before attempting removal. The torque achievable through a spanner on a properly welded nut is usually sufficient to free even badly corroded screws.
For DIY without welding equipment, a two-part metal repair epoxy such as Loctite Metal Epoxy or Araldite Standard can bond a nut to the shank with sufficient strength for screws that are only moderately corroded and not excessively tight. Mix the epoxy according to the instructions, apply it to the contact surfaces, press the nut firmly onto the shank, and allow it to cure for the full time specified on the packaging before attempting removal. Most metal epoxies require a minimum of one hour at room temperature, and overnight curing gives the highest bond strength.
When using a welder, ensure the surrounding material is non-combustible or adequately protected. Do not weld near timber, plasterboard, sealants, painted surfaces, or electrical wiring. Shield the surrounding area with welding blankets or damp cloths if there is any combustible material within 300mm of the work area.
Drilling out is the most reliable of all extraction methods in that it will always work, but it comes at a cost: it destroys the screw and leaves a hole that must be addressed afterwards. It should only be used once the less invasive methods have been exhausted. When it is the right choice, however, it is the right choice decisively and without hesitation.
The objective is to drill along the central axis of the screw shank, removing the metal core whilst leaving as much of the surrounding material intact as possible. Begin with a drill bit that is slightly smaller than the shank diameter. Use a centre punch to mark the exact centre before drilling. Set the drill to run at moderate speed, apply firm downward pressure, and work steadily. Do not force the drill. If you are working in metal, use a cutting lubricant throughout to prevent bit overheating and work-hardening of the surrounding steel.
In softwood, once the screw core is drilled away, any remaining thread material in the walls of the hole can be loosened with a bradawl or thin spike and pulled out with pliers. The hole can then be filled with a wooden dowel and PVA glue, allowed to cure overnight, and re-drilled at the correct position for a new screw. In MDF or chipboard, a proprietary screw hole repair plug or a length of hardwood dowel slightly oversized for the hole, glued in and cut flush, gives a solid base for re-fixing. In metal, the drilled hole can be tapped to accept a thread insert such as a Helicoil, which provides a fresh, clean thread for a new bolt or screw.
In timber, clamp a drill guide collar or a piece of tape around the drill bit at the correct depth before starting. This prevents drilling deeper than the screw length and reduces the risk of punching through a thin board or causing a split near an edge or face. Over-drilling in timber near a visible face creates repair work that is far more involved than the original extraction problem.
- Centre-punch the exact centre of the screw shank accurately
- Select a drill bit slightly smaller than the shank diameter
- Set a depth stop or tape marker on the bit at the correct screw length
- Apply cutting lubricant to the bit if working in metal
- Drill at moderate speed with firm, consistent downward pressure
- Clear swarf regularly to prevent packing in the hole
- Once the core is removed, clear remaining thread material from the hole
- Repair the hole using a dowel and PVA (timber), filler plug (sheet materials), or thread insert (metal)
In timber only, and only where the surface finish is not a concern, a sharp wood chisel can be used to create access around the screw shank or to lever the screw upward from below. This method is most commonly used in rough carpentry, formwork, and demolition work where speed and practicality take priority over a clean finish, and where the timber component is either being discarded or will be hidden in the finished structure.
There are two approaches depending on the situation. The first is to use the chisel to cut into the timber alongside the shank on two opposite sides, creating a shallow channel that exposes enough of the shank for Mole grips to grip at or near the surface level. Once you can grip the shank, proceed with Method 3. The second approach, used when the screw shank is completely inaccessible and the timber component is being removed, is to use the chisel and a mallet to cut out a section of timber around the screw, freeing the component from the screw rather than extracting the screw from the component. The screw can then be dealt with on the bench or the remaining stub left in the substrate if it is not structural.
A sharp chisel is essential. A blunt chisel requires more force, is far more likely to slip and damage the surrounding surface, and produces a rougher cut that makes subsequent repair harder. If your chisel is not sharp enough to shave fine curls from a piece of scrap timber with light hand pressure, sharpen it before using it on a finished surface.
Use this table as a starting point based on your specific situation. Always begin with the least invasive method available and only escalate if simpler approaches have been given a fair chance and failed.
| Your Situation | Start With | If That Fails | Last Option |
|---|---|---|---|
| Stripped head, some drive surface remains | Method 1: Rubber band | Method 2: Cut a new slot | Method 4: Extractor |
| Snapped shank, 2mm or more proud of surface | Method 3: Mole grips | Method 2: Cut slot, then screwdriver | Method 4: Extractor |
| Flush or below-surface shank in timber | Method 4: Screw extractor | Method 5: Left-hand drill bit | Method 7: Drill out |
| Flush or below-surface shank in metal | Method 5: Left-hand drill bit | Method 4: Screw extractor | Method 7: Drill out and tap |
| Corroded screw in metal with shank proud | Penetrating oil, then Method 3 | Method 6: Weld a nut on | Method 7: Drill out |
| Corroded screw flush in metal | Penetrating oil overnight, then Method 4 | Method 5: Left-hand drill bit | Method 7: Drill out and tap |
| Screw in plasterboard | Method 1 or Method 2 | Method 4 at lowest speed with care | Cut out patch, re-fix nearby |
| Screw in wall plug in masonry | Method 3 if any shank is accessible | Drill out the plug entirely and replace | Re-fix at adjacent position |
| All methods failed, timber surface is sacrificial | Method 7: Drill out | Method 8: Chisel to expose shank | Remove timber section with screw in situ |
Most headless screws are the result of entirely avoidable mistakes. The following four causes account for the vast majority of stripped, snapped, and corroded heads seen on UK sites and in domestic DIY. Address each one systematically and you will rarely encounter this problem again.
A driver bit that is even slightly too small for the drive recess will rock under load, contacting only the outer walls of the recess rather than the full drive surface. This concentrates stress on a small area and rounds out the drive walls rapidly. Phillips and Pozidriv heads are frequently confused because they look similar in casual inspection. They are not interchangeable. Using a Phillips bit in a Pozidriv screw or vice versa results in immediate stripping because the drive geometries are different.
To identify a Pozidriv head, look for small tick marks or secondary slots at 45 degrees to the four main slots. Their presence indicates Pozidriv. Their absence indicates Phillips. The majority of woodscrews sold in the UK for general construction are Pozidriv. Most screws supplied with flat-pack furniture and consumer electronics from outside Europe are Phillips. When in doubt, use the correct bit: it takes five seconds to check and avoids the entire problem.
Replace driver bits regularly. A worn bit tip with rounded edges transfers significantly less torque than a sharp one and will cam out under load even on an undamaged screw head. A pack of replacement Pozidriv PZ2 bits costs under £3 and should be treated as a consumable item rather than a lifetime tool.
Modern cordless drill drivers and impact drivers can deliver far more torque than most screws are designed to withstand. An impact driver set to full power will snap the head off a No.8 screw driven into hardwood before the operator has time to release the trigger. The clutch exists to prevent this. Set it to the lowest setting that seats the screw flush with the surface, and increase only if necessary. This takes an extra thirty seconds when starting a new job and prevents every over-torqued snap that would otherwise occur.
For small gauge screws below No.8, particularly in hardwood or close to the edge of a board, use a hand screwdriver or a drill driver set to its lowest clutch position with a low speed setting. High speed combined with high torque is the combination that causes snapped heads. Low speed gives you time to react before the screw is over-driven.
When driving screws near the end grain of timber or within 50mm of a board edge, the lateral splitting resistance of the wood is lower and the effective torque required to seat the screw is higher. This combination makes snapping significantly more likely. Drill a pilot hole, set a lower clutch, and drive more slowly in these situations.
Standard bright zinc-plated screws are suitable for internal, dry applications only. They are not appropriate for external joinery, external structures, wet rooms, bathrooms with poor ventilation, or anywhere else where prolonged moisture contact is likely. In these environments, zinc plating breaks down within months and the underlying steel begins to corrode, seizing the screw into the material and ultimately causing the head to snap during any future removal attempt.
For external applications, use A2 stainless steel screws as the minimum specification. For marine environments or anywhere coastal salt air is a factor, A4 grade stainless is required. For pressure-treated or preservative-treated timber specifically, use screws that are rated for contact with treated wood. The preservative chemicals in CCA and modern copper-based treatments aggressively corrode standard zinc-plated fixings even in covered, dry conditions. Stainless steel or hot-dip galvanised fixings are the correct specification for treated timber.
The cost difference between a standard zinc screw and a stainless equivalent is modest. The cost of removing a corroded screw twelve months later, if it is removable at all, is considerably higher in both time and materials.
Driving a screw directly into hardwood, dense engineered timber, MDF, or sheet materials such as plywood at the face without a pilot hole puts significant lateral and torsional stress on the shank. This is the primary cause of shank snapping during installation in timber. A pilot hole sized at 60 to 70 percent of the screw shank diameter reduces insertion resistance dramatically, eliminates thread-locking stress in the shank, and reduces the risk of the surrounding material splitting at the same time.
For countersunk screws in hardwood, a countersink bit used after the pilot hole allows the head to seat flush without requiring excessive torque to pull it down. Without a countersink, the head must force its way into the surface under driver torque, which can snap the head at the shank junction before the screw is fully seated. This type of snap leaves the head sitting on the surface and the shank flush or slightly below, which is one of the harder extraction scenarios in this guide.
- Cause of failure identified: stripped slot, snapped shank, corrosion, or previous failed attempt
- Penetrating oil applied if any corrosion is present; minimum 15 minutes soak time allowed
- Amount of shank proud of surface measured with a steel rule
- Material type confirmed: softwood, hardwood, MDF, metal, plasterboard, or masonry
- Cable and pipe detector used if drilling near any wall, floor, or ceiling surface
- Starting method selected from the quick reference table
- Surrounding surface protected with masking tape where any tool contact is likely
- Starting with the least invasive method appropriate to the situation
- Centre punch used to mark the exact centre of the shank before any drilling
- Drill set to reverse (anti-clockwise) for extractor and left-hand bit methods
- Drilling at low speed with firm, consistent downward pressure throughout
- Not increasing rotational force if the screw does not move; applying more oil and waiting instead
- Swarf being cleared from the hole regularly during any drilling operation
- Escalating to the next method only after the current one has been given a fair attempt
- Hole assessed and appropriate repair method chosen: dowel and PVA, filler plug, or thread insert
- Root cause identified and noted to prevent the same failure on remaining fixings in the same job
- Replacement fastener selected in the correct material, gauge, and drive type for the application
- Pilot hole drilled for replacement screw in hardwood or dense sheet material
- Driver clutch setting adjusted to the correct level for the replacement screw size
Replace with actual
Replace with actual
Replace with actual
Shop Fixings and Fastener Tools at JALFT
Screw extractor sets, left-hand drill bits, locking pliers, penetrating oils, and the complete range of fixings for trade and DIY. UK stock with next-day delivery available on all orders.
