・Arranged like a wave, the M-shaped slot guides the screw into the center of the sleeve, 
    which provides even resistance and stable tensile strength.
・When a screw is driven to the end, the part under the neck of the sleeve appropriately buckles,
    whereby absorbing the impact generated between the screw and the base material so that
    the target object can be securely fastened to the base material without any looseness.
・With multiple projections and recesses on the sleeve surface, the plug securely fits in
    the hole of the base material.
・The structure that a part of the sleeve division surface is jointed can prevent the anchor from
    expanding early during insertion into a prepared hole of a base material.
・Because the inner diameter of the sleeve expanding part is small, large expansion force is
    generated when the screw is driven, thus providing high pull-out load.

★ Data about fastening to prevent hot-water supply systems from falling (MLIT Notice No. 1447)
--->You can view the PDF file by clicking here.
      Applicable product No.: NP635


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