circular spike

circular spike

[′sər·kyə·lər ′spīk]
(engineering)
A metal timber connector fitted with a circular series of sharp teeth that dig into the wood, preventing lateral motion, as a bolt is tightened through the wood and the spike.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

circular spike

circular spike
A type of metal timber connector having a series of sharp teeth in a circle; the teeth dig into the wood as a bolt is tightened, thereby preventing lateral motion.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.