fastens

verb
  1. 1

    To attach or connect in a secure manner.

    โ€œCan you fasten these boards together with some nails?โ€

  2. 2

    To cause to take close effect; to make to tell; to land.

    โ€œto fasten a blowโ€

Source: https://en.wiktionary.org/wiki/fasten, https://en.wiktionary.org/wiki/fastens