What is a screw connection
What is a screw connection?
What are detachable and non-detachable connections?
Be differentiated detachable connections, which can be detached again without destruction, and inseparable connections, their connection can only be canceled if the joining means (fasteners) or components are destroyed or
What types of connections are there?
A distinction is generally made here between the form-fit connection, the force-fit connection and finally the material connection. What is meant by this and what the most common joining methods (e.g. screwing, riveting, gluing, etc.) are included in the following.
What are expansion bolts?
A Expansion screw is a noticeably elastic, stretchable screw of a higher strength class. In a screw connection, it behaves like a pretensioned tension spring.
How can screw connections be made?
Working principle. By turning the screw or the nut, there is a sliding in the thread between the thread flanks and thus also a longitudinal movement results, whereby a form fit is achieved between the two.
Which types of screw locking are frictional?
General. Screw locks are non-positive (e.g. spring washers, spring washers) or form-fitting (e.g. locking washers with rags). To the frictional Fuses also count with self-locking nuts. There are other fuses that are used for special purposes.
Why are screws made with different head shapes?
Screws with this Head shape are called carriage bolts. They were originally used for fastening locks and fittings, as this special one Head shape a loosening of the screw impossible from the outside. However, carriage bolts are suitable for all wood connections.
Which screws for which purpose?
- Wood screws. They are ideal for joining wooden parts together or for attaching fittings or signs to wood. ...
- Metal screws, nuts and washers. ...
- Sheet metal screws. ...
- Drywall screws.
How does a screw work?
Screws have a so-called thread, like a corkscrew, that winds around a cylinder, the screw body. The head of the screw is specially shaped so that you can turn it with a screwdriver or wrench. This is how you screw Screws in and out.
How does a thread work?
Put simply, is a thread a profiled notch, which consequently runs in a wave-like and continuous manner around a cylindrical bolt. They can run on the outside of a shaft as well as inside in a bore. They are based on the "inclined plane" principle!
What do you need washers for?
By doing Washers are placed on the threaded bolt, they absorb the frictional and compressive forces occurring on the nut or the screw head, which arise when tightening with the wrench. In this way, they protect the surface of the workpiece in the area of the screw connection from damage.
How does a lock nut work?
The Lock nut, also known as a jam nut, is a locking method that uses two separate nuts on top of each other. When putting on the second mother Caution is advised, as over-tightening can damage the thread or cause the screw to break.
How do you counter nuts correctly?
"CounterFor example, "means two Nuts to turn on a screw. The first mother is untwisted and tightened normally. However, vibrations can cause them to develop mother loosens and rises over time.
How does a screw lock work?
A Screw locking prevents screws from loosening due to vibrations or dynamic movements. Usually the frictional resistance between the parts is sufficient, provided that they have been properly attached. But under extreme loads, the fasteners can loosen.
How do I recognize an expansion screw?
And You can see expansion screws on their special shape, not on the angle given when tightening. This is what the screw looks like.
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