screwplate

or screw plate

[ skroo-pleyt ]
/ ˈskruˌpleɪt /

noun

a metal plate having threaded holes, used for cutting screw threads by hand.

Origin of screwplate

First recorded in 1650–60; screw + plate1

British Dictionary definitions for screw plate

screw plate

noun

a steel plate with threaded holes used for making male screws