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cap nut

noun

a closed nut having a domelike cap over the back, protruding part of the engaged screw or bolt

Examples

A cap nut is a blind hex nut with an acorn-shaped top.

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Examples from the Web for cap nut
Historical Examples
  • In Figure 191 a is a cap nut, and the order in which the same would be pencilled in is indicated by the respective numerals.

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7
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