captive nut मीनिंग इन हिंदी

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The second type of captive nut is a threaded insert.
A small screw and captive nut on the top of the valve body permits the valve to be screwed shut and ensure that it remains tightly closed.
Press fit and swaged captive nuts are used in panels that are too thin to be threaded or in soft materials that are too weak to be threaded.
Other specialized shapes exist for certain needs, such as wingnuts for finger adjustment and captive nuts ( e . g . cage nuts ) for inaccessible areas.
For example, a prototype might be assembled using nuts and bolts, but in production such fasteners might be replaced by captive nuts or threaded holes built into the parts, making assembly much faster, easier and therefore cheaper.
The most common method, in general, is to provide in each component a female-threaded port, on each hose or tube a female-threaded captive nut, and use a separate adapter fitting with matching male threads to connect the two.