| 摘要 |
A non-corrosive bore hole cover apparatus for plugging a hole bored in a substrate is provided comprising a top plate molded from a non-metallic material, a bottom plate molded from a non-metallic material, a compressible ring gasket sandwiched between the top and bottom plates, and a threaded bolt. The non-metallic material is preferably a glass reinforced polymer. A bottom side of the top plate and a top side of the bottom plate each have an annular gasket locating ridge formed thereon. The threaded bolt passes through a top plate hole such that a head of the bolt is retained against a top side of the top plate and a tail end of the bolt is threaded through a hole of the bottom plate.
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