“standard thread”

We have one entry that includes the term standard thread.

United States standard thread

noun

: an American screw thread that has a thread angle of 60 degrees and varies from 3¹/₂ to 64 threads per inch

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  • any of a genus helianthus especially h annuus of new world composite plants with large yellow rayed flower heads bearing edible seeds that yield an edible oil
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