Material:Disk-shaped, non-magnetic silver-colored metal plate with non-magnetic copper-colored
screw.
Weight: approximately .1 oz.
Condition:
Good.
Location:
SEB12.
Discussion:
This is a low-tech fastener intended for a very specific purpose. The
screw appears to be a wood screw and the teeth may be designed to bite
into wood and prevent to rotation of the plate which is attached to a
surface by means of some kind of pin that goes through the hole in the
plate.
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