Door bolt facts for kids

A door bolt is a simple but important device used to keep doors securely shut. It's a type of lock that slides a metal bar, or "bolt," into a hole or a special plate on the door frame. This stops the door from opening. Sometimes, people add a padlock to a door bolt for even more security.

What is a Door Bolt?

A door bolt is a mechanical device that helps secure a door. It works by moving a solid piece of metal, called a bolt, from the door into the door frame. This action holds the door firmly in place. Unlike more complex locks, many door bolts don't need a key to operate. They are often used as an extra layer of security, especially on gates, sheds, or back doors.

How Do Door Bolts Work?

Door bolts are quite simple to use. They have a sliding bar that you push or pull. When you slide the bar into a hole or a metal loop on the door frame, the door becomes locked. To unlock it, you just slide the bar back. This simple action makes them very reliable. They are designed to withstand force, making it harder for someone to push the door open.

Parts of a Door Bolt

Most door bolts have a few main parts:

• The Bolt: This is the main sliding metal bar that extends into the door frame.
• The Housing: This is the part attached to the door that holds the bolt. It often has a handle or knob to slide the bolt.
• The Keeper or Strike Plate: This is a metal plate or loop attached to the door frame. The bolt slides into this part to secure the door.

Types of Door Bolts

There are several different kinds of door bolts, each designed for specific uses.

Barrel Bolts

Barrel bolts are one of the most common types. They have a simple cylindrical (barrel-shaped) bolt that slides into a keeper. They are easy to install and are often used on bathroom doors, sheds, or gates. They offer basic security and are operated by hand.

Flush Bolts

Flush bolts are often found on double doors. They are installed into the edge of the door, so they are "flush" or level with the door's surface when not in use. This makes them less noticeable. One door usually has a flush bolt at the top and bottom, securing it to the frame. This allows the other door to close against it.

Surface Bolts

Surface bolts are mounted on the surface of the door, rather than inside it. They are visible and can be quite decorative. They work similarly to barrel bolts, with a sliding bar that extends into a keeper on the frame. They are often used for extra security on main doors or for a rustic look.

Padlock Bolts

Some door bolts are designed with a loop or hole where you can add a padlock. This makes them much more secure. The padlock adds another layer of protection, as it requires a key or combination to open. These are commonly used on sheds, garages, or storage units where valuable items are kept.

Where Are Door Bolts Used?

Door bolts are incredibly versatile and can be found in many places.

• Homes: They are used on back doors, basement doors, or gates for added security.
• Sheds and Garages: They are very popular for securing outdoor storage buildings.
• Commercial Buildings: Sometimes used on utility closets or less-used doors.
• Gates: Essential for keeping garden gates or fence gates closed.

They are a simple, effective way to add security and peace of mind.