| 摘要 |
A fastener, such as a nail or staple, includes a fastener body having a head and a plug of filler material encasing the head. The plug of filler material fills the hole made by the fastener body when the fastener is driven into a workpiece. Many types of fasteners can be used, such as nails and staples. The filler material can be a wide variety of materials such as wood putty, acrylic sealant, fiberglass resin fillers, epoxy adhesives, and plastic.
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