Strike plate
The Guild of Architectural Ironmongers publication Glossary of architectural hardware terms defines a strike plate as a 'flat metal plate fixed to the door frame into which the bolt or bolts shoot. There is a shaped or bevelled lip on one side to guide the latchbolt. A strike plate is always provided with a mortice lock or latch, and with rim locks on an outward opening door.' It defines a keep as an 'alternative word for a staple or strike plate i.e. the part of the lock which receives the bolt and secures the door.'
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