Used power steering pump belt adjuster bolt, Mazda MX5 or Eunos Roadster 1.6 & 1.8 mk1, mk2 & mk2.5 models.
This is the 80mm long adjuster bolt that is threaded through the spacer block to tension the PAS (and a/c if fitted) multi-rib belt.
99795-0880. UM00964.