Noun
the raised helical rib going around a screw
Source: WordNetGraphic representation of formulae for the pitches of threads of screw bolts Joseph Whitworth 's screw thread measurements were adopted as the first (unofficial) national standard by companies around the country in 1841. Source: Internet
Joseph Whitworth 's screw thread measurements were adopted as the first (unofficial) national standard by companies around the country in 1841. Source: Internet
Both of these cameras used M42 screw thread lenses as did the Pentax Spotmatic. Source: Internet
Equipment mounting A typical section of convert server rack rail Fastening Originally, the mounting holes were tapped with a particular screw thread. Source: Internet
The purpose and detail of implementation influence whether this application is called a cam or a screw thread, but in some cases, the nomenclature may be ambiguous. Source: Internet