thread
6
7.7
- noun
- /θrɛd/
- Specialized
:
rosca
- As you can see, the threads on this screw are almost entirely gone.
- screw threads
- bolt threads
- nut threads
Examples
-
The heated tool cuts threads as it is rotated into the softened end of the tube.
Academic text (1995) -
The wheel itself is spun by an electric motor and cuts threads into the tube.
Academic text (1995) -
The threads themselves are cut into the neck rings by a thread mill.
Academic text (1995) -
The pad and base mate via a dual-start 1/2 to 13 thread, providing a less than 3/4 turn for connecting.
Academic text (1996) -
The vial has two threads, starting 180 degrees from each other.
Academic text (1995) -
Supernuts are available in external thread-mount or integral flange-mount styles.
Academic text (1995) -
The vacuum and pressure valve switches are available in flush, panel, pipe-thread, or manifold mounting styles.
Academic text (1994) -
The possible joint failure modes are bolt-thread shear, nut-thread shear, bolt fracture, or some combination of the three.
Academic text (1996) -
The stainless-steel lifting-screw threads have reportedly been formed to Class 2-C (centralizing).
Academic text (1996) -
The technician inspected the screw to ensure its thread was intact for secure fastening.
Synonyms
A raised spiral on a screw or bolt makes it hold things when you turn it
Idioms
3
7.6
To pass something carefully through a very small gap or to do a very precise and difficult action
- Informal
1
6.1
In a very dangerous situation where a small problem can cause everything to fail
Compounds
A plant that grows in dry places with long stiff leaves that have thin threads along the edges
A low plant that lives for many years in woods with three-part leaves, yellow roots and white flowers
- Specialized
A raised spiral on a screw or bolt makes it hold things when you turn it
- Specialized
A disease that makes threads of fungus grow on branches and leaves of tropical trees like cacao or tea
How Coarse
- Specialized
6
7.7
8
7.9
Surface Forms
Etymology
Thread comes from an old English word thraed meaning 'twisted string', and the spiral ridge on a screw looks like a string wrapped around its shaft. That's why the raised spiral on a screw is called a 'thread'.