from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A type of bolt with a rounded head and a square shank which will not turn.
from the GNU version of the Collaborative International Dictionary of English
- n. a type of bolt threaded only at the end opposite the head, used mostly for fastening pieces of timber together, and inserted into pre-drilled holes.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a roundheaded bolt for timber; threaded along part of the shank; inserted into holes already drilled
Sorry, no etymologies found.