Even with the correct screw, poor installation technique can lead to stripped or broken screws, split wood, or screws that won't tighten. Learn why these problems happen, how to fix them, and how to prevent them for stronger, longer-lasting connections.
Common installation errors include "walking," split material, and stripped screws, all of which can cause misalignment, material damage, and fastener failure. Fortunately, these mistakes can easily be avoided with the right tools and technique.
Most screw installation errors occur because of three key mistakes: using the wrong fastener, using the wrong driver bit, or applying too much speed or torque. Overdriving a screw is one of the most common causes of stripped screw heads, stripped holes, broken fasteners, and damaged materials.
This guide covers the most common errors in screw installation—walking tips, stripped screws, split wood, and broken fasteners—as well as how to fix mistakes and prevent them before they occur. Follow the tips in this guide to correctly install screws and create a secure, long-lasting project.
Screw Walking: Why Your Screw Won't Start Straight
"Walking" occurs when the screw tip slips away from the insertion point instead of biting into the surface. Screws that move while driving can end up off-target or crooked, which can damage both the structural strength and visual appeal of the connection.
Stripped Screw Head
A stripped screw head occurs when the driver bit chews up the head of the screw, often caused by excessive torque or a misfitting bit that causes cam-out. A stripped screw head makes it difficult to tighten or remove the screw.
Follow these steps to remove a stripped screw:
- Use a burnisher or drill bit to remove the screw head
- Use a screw extractor to grip the screw
- Slowly back out the screw
Stripped Screw Hole: Why Your Screw Won't Tighten
If a screw keeps spinning without tightening or seems to have lost all tension in the material, you may have stripped the threading from the hole. Stripped threads prevent the fastener from grabbing material and can greatly weaken holding power.
Stripped threads may be due to:
- Overtightening the screw
- Driving too fast, especially in soft materials
- Repeatedly removing and reinserting the screw
How to Fix a Stripped Screw Hole
Split Wood and Cracked Surfaces
Split wood occurs when a screw or nail forces the wood to crack or splinter as the fastener is driven. Split wood can reduce holding strength, cause joint failure, and damage the entire workpiece.
How to Prevent Wood Splitting
Prevent fasteners from breaking wood by:
- Drilling pilot holes before installation
- Even self-starting screws can benefit from pilot holes in hard or brittle materials
- Inserting screws farther away from edges
- Using thinner screws—only if it won't damage structural integrity
- Lubricating screws with wax or soap before driving
- Jake Sales wood screws are pre-lubricated for easy driving
Broken Screws
Screws can snap or shear under too much force, making it impossible to tighten or remove the fastener through normal methods. Broken screws don't provide the same level of holding power and may need to be removed.
How to Remove a Snapped Screw
Broken and snapped screws cannot be removed through normal methods. To remove a broken screw, drill out the fastener body with a hard bit rated for metal. You can fill the hole with wood glue or a wooden peg or, if needed, retry fastening with a larger screw—be sure to use proper installation technique.
Troubleshooting Chart
| Common Screw Errors & Solutions | ||
|---|---|---|
| Problem | Most Likely Cause | Solution |
| Screw walks |
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| Screw slips or cams-out |
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| Screw head strips |
|
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| Wood splits |
|
|
| Screw won't tighten |
|
|
| Screw snaps |
|
|
Even if you choose a high-quality fastener well-suited for your project, poor installation technique can cause mistakes that harm the integrity and appearance of a connection. Follow the tips in this guide to prevent installation errors and build a secure project.
Shop lubricated and coated self-starting, self-tapping, and self-drilling screws for easy installation on jakesales.com. As always, if you have hardware questions or need help finding the right fastener for your project, you can contact our team of experts at (406)752-5253 or send an email to tom@jakesales.com.
FAQ
Do I need a pilot hole for screw installation?
When in doubt, drill a pilot hole. Pre-drilling helps ensure correct placement and prevent damage from excessive friction.
How do I fix a stripped screw hole?
Stripped screw holes can be filled with wood glue and a dowel or wood filler, or you can try refastening with a wider screw
Can you screw near the edge of wood?
Placing screws or nails near the edge risks splitting the wood, though it can be done successfully if you pre-drill pilot holes, use the correct hardware, and drive fasteners slowly
Why does my screw keep spinning but won't tighten?
The screw hole may have stripped, meaning the threads can't grip the surrounding material. Repair the hole with wood glue and a dowel or wood filler, or use a larger screw if appropriate.
Why is my screw walking?
Screw walking happens when the tip slides across the material instead of biting into it. This can be caused by starting too quickly, skipping a pilot hole, or using the wrong screw point for the material.
Can I reuse a stripped screw?
If the screw is damaged, replacement is usually the better option to prevent misaligment or poorly tightened connections.