spring bolt[′spriŋ ‚bōlt]
A bolt which must be retracted by pressure and which is shot into place by a spring when the pressure is released.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
spring bolt, cabinet lock
A bolt having a beveled face; retracts when subject to pressure and springs back when the pressure is released; is self-acting when the door or drawer is closed.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.