PURPOSE: To provide a foam concrete nail which possesses the force of anti high load and whose driving-in is easy.

CONSTITUTION: A small diameter stepped portion 6 is provided at the shaft 4 of a nail 2 having a bolt head 5, and a sleeve 3 is put on the stepped portion 6 and is attached to it under pressure, and an ALC nail 1 is formed. Each axial rib is provided at the stepped portion 6 of the nail 2, and each peripheral rib 8 is provided at the sleeve 3, and so the ribs rise lengthwise and crosswise on the outer periphery surface of the sleeve 3 thus attached under pressure. When the ALC nail 1 is driven into ALC 9 and rotated by means of a driver, the diameter of the sleeve 3 is enlarged by the axial ribs of the nail 2, and pressure contact with the ALC 9 is realized, and the ALC nail 1 is fixed.