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Thermoset
Screws :: |
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| Most thermoset screws are constructed from 4140 or Nit. 135M. In recent years, due to newly engineered resins, many molders have found the need to replace these screws with through-hardened, tool steel screws. These screws tend to have short L/D ratios with a constant body diameter. Wear is typically evident only in the discharge end. Most Concor thermoset screws are made from tool steel. |  |
