Flat lock

{
  "id": "MLC-T-IND-002333",
  "term": "Flat lock",
  "field": "Industrial and trades",
  "definition": "A method of joining two pieces of sheet metal by folding their edges over each other and then flattening the seam. This technique creates a smooth, low-profile joint that is suitable for roofing, wall cladding, or ductwork where a watertight seal is not the primary concern. The seam is formed by a double fold, with each sheet bent at 180 degrees before being pressed together.",
  "subject": "Construction",
  "translations": {
    "de": "Falzverbindung",
    "es": "engatillado plano",
    "fr": "agrafe plate"
  },
  "url": "https://mlchart.com/terminology/industrial/flat-lock/"
}