How to unlock hexagonal screws?

When you need to assemble furniture or repair equipment, you often use hexagonal screws. Sometimes we encounter hexagonal screws that are difficult to unscrew, which brings a lot of trouble to the work. Don't worry, here are some practical methods and tips to help you easily deal with this problem.

First, you need to prepare a hexagonal wrench that matches the size of the screw head. Hexagonal wrenches have different specifications, ranging from very small sizes to larger sizes. When choosing, make sure that the wrench can be fully embedded in the hexagonal hole of the screw head so that it can provide enough torque to turn the screw. If you don't have a suitable hexagonal wrench on hand, you can also consider using an adjustable wrench or socket wrench, but be careful to adjust the size to avoid damaging the screw head.

The operation steps should be standardized

1. Preliminary inspection

Before starting to screw in the screws, carefully observe the condition of the screws. Check whether the screws are rusty. If there is obvious rust on the surface of the screws, rust may be one of the main reasons why the screws are difficult to unscrew. At the same time, check whether the parts around the screws are loose or damaged to avoid unnecessary damage to other parts during the screwing process.

2. Apply lubrication

If the screw is rusted, applying lubricant is a very effective method. You can spray the lubricant evenly on the screw head and screw rod to allow it to fully penetrate. Wait a few minutes for the lubricant to work, dissolve the rust, and reduce the friction between the screw and the surrounding parts.

3. Apply force correctly

Insert the prepared hexagonal wrench into the hexagonal hole of the screw head, making sure the insertion depth is sufficient to ensure that the wrench fits tightly against the screw head. Then, hold the wrench steady with one hand and apply appropriate force with the other hand to turn the wrench. When applying force, be careful to keep the wrench perpendicular to the axis of the screw to avoid the wrench slipping off or damaging the screw head. If the screw is tight, you can try to gradually increase the force, but don't use too much force to avoid breaking the wrench or damaging the screw head.

4. Use external force

If the screw is still difficult to unscrew, you can try to use some external force. You can gently tap the handle of the wrench with a hammer to loosen the screw through vibration. You can also use a force rod to increase the torque. Slide the force rod over the wrench handle and apply more force to turn the wrench.