lead plug

lead plug

1. A small cylinder of lead which is forced into a hole in a masonry wall; serves as a point of attachment for a screw or nail driven into it.
2. A piece of lead between adjacent stones, for holding them together; formed by pouring molten lead in a groove cut in the jointing faces.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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Therefore, LRB inserts a lead plug in RB, as shown in Fig.
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To my astonishment the lead plugs were still there in the base and the pins were also in the bottom of both."
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Nailing strips (2 by 3's) for the lath facing were fastened to the block wall with lag bolts in lead plugs. Lath was painted white before assembly.
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