| 摘要 |
A panel coupler for coupling together two facing panels at a predetermined distance from each other by passing a bolt through the panels and tightening a nut on the bolt comprises a panel clamp member having two facing planar portions coupled together by a U-shaped portion, the planar portions being provided with aligned holes through which the bolt is passed, and a cylindrical portion extending outwardly from the edge of the mounting hole of one of the planar portions, the outer periphery of the cylindrical portion being provided with a plurality of axial ribs, and a metal ring pressure fitted on the cylindrical portion.
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