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Counterbore

Counterbore

Hole which allows a fastener to be inserted flush with the surface.

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Readers' pathsAug 2026 – Oct 2026

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Share of the 179 clicks on its links

  1. Countersink

    Conical hole cut so a fastener can be inserted flush with the surface.

    56%

  2. Spotface

    Localized flat region on a machined workpiece.

    30%

  3. Screw

    Type of fastener characterized by a thread wrapped around a cylinder core.

    7.3%

  4. Coaxial

    Geometrical concept.

    6.1%

Readers come from

Share of the 574 readers arriving from another article

  1. Countersink

    Conical hole cut so a fastener can be inserted flush with the surface.

    51%

  2. Qantas Flight 32

    2010 aviation accident over Indonesia.

    18%

  3. Non-breaking space

    Special character in text processing.

    13%

  4. Spotface

    Localized flat region on a machined workpiece.

    1.7%