holding-down bolt

anchor bolt, foundation bolt, hold-down bolt

anchor bolt
1. A steel bolt usually fixed in a building structure with its threaded portion projecting; used to secure frameworks, timbers, machinery bases, etc.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
"The system can identify misalignment and balance problems, mechanical looseness or if the holding-down bolts aren't tight.