-J-
- jackscrew
- n. a threaded rod used for centering and balancing a vault door & frame in position during installation
- jamb
- n. the vertical components of a door frame
- jiggered finish
- n. a surface adorned with overlapping concentric circles
- jimmy proof
- adj. pertaining to a lock having a bolt which interlocks with its strike
- JIS
- abb. Japanese Industrial Standard
- jumbo cylinder
- n. a rim or mortise cylinder of 1-1/2" diameter
| © | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix |
This listing of
the glossary is courtesy of 