かちり

adverb taking the 'to' particle

with a clink; with a click; with a clack

Describes a short, sharp, metallic or hard sound, like a lock engaging, a switch being flipped, or small hard objects hitting each other.

• 鍵かぎを回まわすとかちりと音おとがした。

  When I turned the key, it made a click.