rag bolt

rag bolt

[′rag ‚bōlt]

(design engineering)

barb bolt

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

barb bolt, rag bolt

A bolt having jagged edges to prevent its being withdrawn from the object into which it is driven.

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lewis bolt

1. A bolt with a wedge-shaped end inserted like the shank of a lewis in a hole drilled in a stone and fastened therein by pouring melted lead or concrete into the unfilled part of the hole.

2. An eyebolt similarly inserted and used like a lewis for lifting heavy stones.

McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.