Information

How are fastener bolts different from screws

2022-04-24
Bolts and screws are our common connection fasteners, which mainly play the role of connection and fixation in various fields and equipment. Many people sometimes mistake bolts and screws, and it is easy to confuse them. Today, I will share with you the differences between fastener bolts and screws. I hope it will be helpful for you to use bolts and screws in the future.

The difference between fastener bolts and screws:
1 Fastener bolts and screws are defined differently
Bolts: Bolts are cylindrical threaded fasteners that are paired with nuts during use. It is mainly used to fasten and connect two parts with through holes, and this connection form is called bolt connection.
Screws, also known as screws. A screw is a tool that uses the physical and mathematical principles of the circular rotation and friction of an object to cyclically and progressively fasten the mechanism of the object. Its set screw is used to fix the relative position of the parts. Screw the set screw into the screw hole of the part to be fastened, and press its end against the surface of the other part, that is, to fix the former part on the latter part.

2 Fastener bolts and screws have different shapes and structures
Bolt: A type of fastener consisting of a head and a screw (a cylinder with an external thread), the head is mostly a hexagonal head, etc., generally larger.
Screw: A type of fastener consisting of a head and a screw. The head is mostly a slot, a cross slot, and there are many internal and external hexagons, which are generally small.

3 Fastener bolts are different from screw applications
Bolts: generally used in pairs with nuts, for through holes, and easy to replace after damage.
Screws: Usually no nuts are needed, and they are directly matched with two objects (generally, the connecting parts must be drilled first and tapped), which are mostly used for blind holes, and the connected parts are rarely disassembled.

4 Fastener bolts and screws use different tools
Bolts generally use wrench-like tools.
Screws generally use screwdriver tools.

5 Fastener bolts and screws are tightened differently
Bolts are generally used in conjunction with nuts or screwed into machined bolt holes.
In addition to the two fastening methods of bolts, there are also self-tapping screws, which are directly screwed into the workpiece with a relatively soft material without machining bolt holes. For example, the wood screws we call are such screws.

6 Fastener bolts and screws are used differently
Bolts and screws are used in different places, and bolts do not require high precision unless there is a matching requirement. Generally, bolts are easy to disassemble, have low machining accuracy, are not limited by connecting materials, and are widely used. The bolts that require matching can withstand lateral Loads; screws are compact in structure, but cannot be dismantled frequently and cannot withstand large forces.