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, which is easy to confuse. Today I will share the difference between fastener bolts and screws. I hope it will be helpful for everyone 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. This connection form is called bolt connection.
Screws can also be called screws. A screw is a tool that uses the physics and mathematics principles of the oblique circular rotation of the object and the friction force to cyclically fasten objects and parts. The set screw is used to fix the relative position of the machine parts. Screw the set screw into the screw hole of the part to be tightened, and press its end against the surface of another part, that is, fix the former part on the latter part.2. The shape and structure of fastener bolts and screws are different
Bolt: A type of fastener consisting of a head and a screw (cylinder with external threads). The head is mostly hexagonal, which is generally larger.
Screw: A type of fastener composed of two parts: a head and a screw. The heads are mostly flat and cross grooves, and there are many internal and external hexagons, which are generally small.
3. Fastener
bolts and
screws are used differently
Bolts: Generally used in pairs with nuts, for through holes, easy to replace after damage.
Screws: usually do not need a nut, directly matched with two objects (generally, the connecting piece needs to be drilled and tapped), which is mostly used for blind holes, and the connected piece is rarely removed.
4. Fastener bolts and
screws use different tools
Bolts generally use wrench-like tools.
Screws generally use screwdriver tools.
5. The fastening of fastener
bolts and
screws is different
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 self-tapping screws, which are directly screwed into a soft workpiece without processing bolt holes. For example, the wood screws we call are this kind of screws.
6. Fastener bolts and screws are used in different occasions
Bolts and screws are used in different places. Bolts do not require high precision. Unless there is a matching requirement, bolts are generally easy to disassemble, have low machining accuracy, and are not limited by connecting materials. They are widely used. Bolts that require matching can withstand transverse directions. Load: The screw is compact in structure, but cannot be disassembled frequently and cannot withstand large forces.
