Pitch-and-lead

{
  "id": "MLC-T-OAG-002810",
  "term": "Pitch-and-lead",
  "field": "Oil and gas",
  "definition": "Two related measurements of a screw thread: pitch is the axial distance between corresponding points on adjacent thread crests, and lead is the axial distance the thread advances in one full turn. On a single-start thread the two are equal, while on a multi-start thread the lead equals the pitch multiplied by the number of starts. For example, a double-start thread with a pitch of 0.25 inch advances 0.5 inch per turn.",
  "subject": "Production",
  "url": "https://mlchart.com/terminology/oil-and-gas/pitch-and-lead/"
}