Are you on the hunt for reliable, high-quality fasteners?
If yes, you must have come across the carriage bolt variety. Let us now take a look at what a carriage bolt exactly is.
A Carriage bolt is basically a distinctive bolt that comes with a mushroom head and a circular shank cross section. The portion right below the mushroom head however is moulded into a square section.
The head is normally shallow and dome-shaped. The squared part has a plain unthreaded shank and is of the same size as the bolt shank’s diameter.
WHAT ARE THEY USED FOR?
Carriage bolts are used to hold together wood with wood or wood with metal or even metal with metal.
It is actually the shape of the bolt that allows it to become self-locking when placed through a square hole with special emphasis on cases where metal is to be dealt with.
Along with this, it can also be very smoothly put through a round hole in most kinds of wood, making it a very versatile accessory. Carriage bolts are used in a variety of industries like:
- Railroad industry
- Farming industry
- Water conservation and treatment industry and
- Mining industry.
In order to use a carriage bolt, you will need a few additional tools in hand. This includes a hammer, a drill, a drill bit, a nut and a washer.
One thing that has to be kept in mind is that carriage bolts are only supposed to be inserted in pre-drilled holes. This is because of the specific shape that it has.
Removing the carriage bolt is also a straightforward process. This can be done by simply twisting the nut, but keeping in mind that it remains on the bolt.
TYPES OF CARRIAGE BOLTS
Here are some different types of carriage bolts which are commonly used:
ROUND HEAD, SHORT NECK
These carriage bolts have a round head, and a short, square-shaped shoulder. They have a unified thread pitch, and are usually made from medium or low carbon steel.
Their short neck makes them much suitable for use with sheet metal as a standard neck might create obstruction and cause inconvenience.
ROUND HEAD, RIBBED NECK
These bolts are made from low carbon steel. These kinds of bolts have ribbed or serrated shoulders.
They also have a feature round head. These are most commonly used in soft and ductile metals, wood and plastics.
FIN NECK
The fin neck carriage bolts are mostly made from low carbon steel material. These feature a round head and a flat surface.
The bearing surface of these bolts forms a 90 degree angle with the shank. These types of bolts are mainly used in thin plywood.
FLAT HEAD, SQUARE NECK
Just as the name suggests, these have a flat head which gives a lower profile on the top or front side of fastening as compared to that of round head bolt.
This type is specifically designed for the garage door industry. However, they can also be used for other purposes.
WHY USE CARRIAGE BOLTS?
Carriage bolts are used in abundance owing to the fact that they are super convenient, user-friendly and effortless especially when dealing with wood.
Moreover, they are somewhat safe to use when used in the correct manner. Along with safety, they also provide security because they can only be unbolted from a single side.
WRAPPING UP
To sum up, carriage bolts are extremely useful as they can be used for multiple purposes. They come in different shapes and are very easy to use.
They are brought into use by different industries based on their respective requirements. Bhavya Industries Ludhiana offers a wide range of bolts and nuts.
