| 摘要 |
A fastener structure for use and securement of sheet stacks is set forth, wherein the fasteners each include a semi-cylindrical shank formed with engagement ribs in confronting relationship relative to securing pairs of the fasteners. The ribs each include a horizontal floor, and wherein the fasteners are in an axially aligned relationship relative to one another to effect securement of a sheet stack utilizing spaced binder plates to secure the stack together.
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