You can often remove an Allen bolt without an Allen key by using a wide-blade flat screwdriver, fitting it firmly between the opposing corners of the bolt's head.
Using a Flat Screwdriver
One common method to remove an Allen screw or bolt when you don't have the correct Allen key is to utilize a flat-head screwdriver. According to reference information, this technique is possible, provided you select the right tool.
Here's how this method works:
- Choose the Right Screwdriver: You need a flat screwdriver with a wide blade. The blade must be wide enough to fit snugly and firmly between the opposing corners of the hexagonal socket within the Allen bolt's head.
- Positioning: Carefully insert the wide blade into the hex socket. The edges of the blade should press against two of the interior corners of the hexagon.
- Applying Pressure and Turning: Once the blade is seated firmly, apply downward pressure to keep it engaged and slowly try to turn the screw counter-clockwise to loosen it.
- Preventing Slippage: To enhance grip and prevent the screwdriver blade from slipping out while you are turning, you can cover the blade with a rubber glove or a piece of rubber before inserting it into the bolt head. This creates friction and helps the blade stay in place.
Why This Method Can Work
The hexagonal shape of an Allen bolt socket has six corners. A flat screwdriver blade, if wide enough, can span across the socket, engaging two of these corners. When force is applied, these corners become pressure points, allowing the screwdriver to apply torque to the bolt, similar to how an Allen key would grip the six internal faces. Using a rubber covering helps fill any minor gaps and increases the contact friction.
Important Considerations
- This method is often best for bolts that are not excessively tight or seized.
- Using a screwdriver that is too narrow or not applying enough downward pressure can cause the blade to slip, potentially damaging the bolt head or the screwdriver.
- Be patient and apply steady pressure. Avoid sudden, jerky movements.
While other methods exist (like using pliers, vice grips, or even cutting a slot), the flat screwdriver technique is a straightforward approach using common tools, as supported by the reference material.
