Thread with combined strength of square & V thread - Metrology & Quality Control

Q.  Which thread has a combined strength of square thread and V thread?
- Published on 07 Aug 15

a. Acme thread
b. Knuckle thread
c. Buttress thread
d. British standard Whitworth thread

ANSWER: Buttress thread

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    Discussion

  • Sravanthi   -Posted on 26 Oct 15
    - Buttress threads are also known as breech-lock threads and they refer to two different thread profiles. Lead screw and hydraulic sealing threads are the two thread profiles.

    - In Buttress threads, one side of threaded face is perpendicular to the screw axis and the other face is slanted at 45°

    - Buttress threads have high power due to combined strength of square and V thread.

    - These threads have low friction and they are used to handle high axial thrust in one direction.

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