| 摘要 |
PROBLEM TO BE SOLVED: To simplify work for making the thickness of a ventilation layer uniform as a whole in the construction of an external insulation wall.SOLUTION: A main body 32 is plate-shaped and a hole 33 penetrated with a machine screw 22 is formed therein. Claws 34 and 35 are formed in two corners positioned on a diagonal of the main body 32. The main body 32 and the claws 34 and 35 are formed by slitting and folding sides of a square in parallel from the vicinity of corners of a square plate-shaped member. The claws 34 and 35 extend in a revolving direction of the machine screw 22. |
