striking plate

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strike plate, strike, striking plate

A metal plate or box which is set in a doorjamb and is either pierced or recessed to receive the bolt or latch of a lock, fixed on a door. Also see box strike plate.
References in periodicals archive ?
This allows you to see where the striking plate should go.
Put the striking plate in place and score round it with a craft knife, then chisel out the wood as before, so the plate doesn't stick out from the doorframe.
It may incorporate a marking device to gauge the position of the striking plate in the doorframe.
Iznik pottery also featured prominently at Sotheby's, with some striking plates and wall hangings.