Definition of Allen screw in English:

Allen screw

Line breaks: Allen screw

noun

trademark
A screw with a hexagonal socket in the head.
More example sentences
  • Both blued and stainless versions are offered with an Allen screw in the head of the pin that can be tightened against the bottom of the barrel to prevent movement under recoil.
  • There's also an Allen screw tension adjustment to regulate how tightly the pistol is held.
  • The standard pin has a larger head complete with an Allen screw for locking in place.

Origin

1930s: from the name of the manufacturer (see Allen key).

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Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something