Hollow Steel Bolt
(Dead Drop Device)
(Dead Drop Device)
This 5/8" diameter steel bolt has been hollowed out, and
has a threaded, removable head. During the "Cold War",
devices like these were used to transfer messages and
microfilms between two individuals without the need for
them to meet. The bolt was left in an inconspicuous
location, such as on a bridge or automobile where it would
be replaced with an original bolt.
has a threaded, removable head. During the "Cold War",
devices like these were used to transfer messages and
microfilms between two individuals without the need for
them to meet. The bolt was left in an inconspicuous
location, such as on a bridge or automobile where it would
be replaced with an original bolt.
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Our steel bolts are
available in either
galvanized low carbon
steel or in solid grade 304
stainless steel.
available in either
galvanized low carbon
steel or in solid grade 304
stainless steel.
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