Nut (fruit) usage of the term is less restrictive, and many nuts (in the culinary sense), such as almonds, pecans, pistachios, walnuts, and Brazil nuts, are not nuts in a botanical sense. Common usage of the term often refers to any hard-walled, edible kernel as a nut. A nut in botany is a simple dry fruit in which the ovary wall becomes increasingly hard as it matures, and where the seed remains unattached or free within the ovary wall. Most nuts come from the pistils with "inferior" ovaries (see flower) and all are "indehiscent" (not opening at maturity). True nuts are produced,
Well nut United Shoe Machinery Corporation (USMC). "Well-Nut" is a registered trademark of USMC in the US. Well nut A well nut is a type of fastener used to blindly fasten a piece (much like a molly bolt) and to seal the bolt hole. They are often referred to by the proprietary name Rawlnut or Rawl nut ;the name they are known by in the UK. A well nut consists of a flanged neoprene bushing with a nut embedded in the non-flanged end. The bolt is passed through one of the pieces to be fastened and threaded onto the nut from the