bn:03514928n
Noun Named Entity
Categories: Screws, Thread standards, Standards of the United States
EN
Unified Thread Standard  National coarse  National fine  UNC screw  UNEF screw
EN
The Unified Thread Standard defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. Wikipedia
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EN
The Unified Thread Standard defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. Wikipedia
standard for screw threads in North America, whose characteristic dimensions are based on inch fractions Wikidata