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What is the classification of bolts according to the connection of the force?

  • Author:Avril Xu
  • Source:BAIDU
  • Release on:2023-12-04
What is the classification of bolts according to the connection of the force?

Bolts according to the connection of the force: ordinary and the reamed holes.
Ordinary threaded connection, the bolt from a slightly larger than its diameter hole, tighten the nut bolt is subjected to tensile force, so the ordinary threaded connection is also known as the tensile bolt connection.

The reamed hole threaded connection, the bolt from a diameter and the bolt is almost equal, but very precise hole (reamed hole) through, the nut does not have to tighten too much, the bolt is subjected to the main shear force, so the reamed hole threaded connection is also called the shear bolt connection.



You can't talk about normal threads and reamed hole threads, they are ordinary bolts and reamed hole bolts, because the threaded portion of both is the same, the difference is the unthreaded portion of the smooth rod. Because the threaded part is the same, so the axial force is the same. Ordinary bolts and holes in the smooth rod part of the fit is a gap, lateral force only when the bolt is tightened, the contact surface of the friction (of course, really if you consider the cut-off, lateral force is actually the shear strength of the bolt), and reamed holes bolts and holes with tolerances, lateral force is the shear strength of reamed holes bolts.

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