Mushroom head

{
  "id": "MLC-T-IND-003825",
  "term": "Mushroom head",
  "field": "Industrial and trades",
  "definition": "A broad, low, domed head on a rivet, bolt, or screw, shaped like the cap of a mushroom, that gives a large bearing area under the head and a smooth, snag-free top. It is used on thin sheet and soft materials where a small head would pull through. Unlike a countersunk head, which sits level with the surface, a mushroom head stands slightly proud of it.",
  "subject": "Mechanical engineering",
  "translations": {
    "de": "Pilzkopf",
    "es": "cabeza de hongo",
    "fr": "tête de champignon"
  },
  "url": "https://mlchart.com/terminology/industrial/mushroom-head/"
}