Module 3 – Lock Work
Chapter 10: Module Summary & Glossary
- Know what key code the client has requested. Test the lock with your key before you leave
- Make sure the door will latch and double-check your work
- A securing work order also requires locking of all other doors and windows with existing hardware
- Once entry has been made, replace the lock and/or deadbolt to the entrance specified by the work order
- If the client or loan type allows for it, padlocks and hasps can be installed to secure areas that cannot be secured by conventional means (i.e., cellar or basement doors, outbuildings)
- Never leave a property unsecure without first calling the client for direction unless specified in the work order. Be sure to document the contact name and number as well as any direction that has been provided within the report
| Bit | Part of a key that enters the keyhole. |
Blade |
Part of a cylinder key that is inserted into the lock. |
Blank key |
A key that has yet to be cut. |
Bow |
Part of a key that is held. |
Combination lock |
A lock opened by pushing buttons or the rotation of dials or disks. |
| Cylinder |
The part of a pin tumbler lock that houses the top and bottom pins that rotate with the key. |
Drivers |
The top pins in a pin tumbler lock; these are usually made of steel. |
High Security Pin |
A pin designed to make picking difficult. |
Key way |
The part of a lock into which a key enters. |
Lever Lock |
A bit operated lock that uses levers. |
Locking Bolt |
The part of a lock that secures a shackle or moves to the door frame. |
| Lower Pins |
The pins of a lock that contact the blade of the key; often made of brass. |
| Master Key |
A key that can open a number of locks which each have their own distinct key. |
Mushroom Pin |
A mushroom shaped high security pin designed to hinder picking. |
Pin Stack |
The arrangement of an upper and lower pin in a cylinder. |
| Pin tumbler Lock |
A lock that utilizes top and bottom pins which must be aligned at the shear line to allow the cylinder to move. |
Post |
Part of a bit key, where the bit is attached. |
Saddle |
The curved part of a lever that the key touches. |
Serrated Pin |
Another form of high security pin designed to hinder picking. |
Shackle |
Curved portion of a padlock. |
Shank |
The part between the shoulder and the bow. |
Shear Line |
The point at which the top and bottom pins of a pin tumbler lock meet to allow the cylinder to turn. |
Skeleton Key |
A warded key that can bypass the wards in several warded locks. |
| Spool Pin |
A type of high security pin that has a groove, cut around its periphery, in order to catch at the shear line to hinder picking. |
| Tension Wrench |
A tool used in conjunction with a pick in order to apply a turning force. |
| Wafer Lock |
A lock similar to the pin tumbler that uses disks that must be raised to a certain height to allow the cylinder to turn. |
Ward |
Obstruction in a lock to prevent unauthorized keys. |
Warded Lock |
A lock utilizing wards to prevent unauthorized keys. |
Resources:
1. Wilton. Mechanisms Parts 1-4. Lock Picking Infomedia. Retrieved October 5, 2005, from http://www.wilton.force9.co.uk/lock/mechanism4.htm.
2. Shurlok Products. Retrieved October 5, 2005, from http://www.shurlok-products.com.
3. LockPicks.com. Retrieved October 4, 2005, from http://www.lockpicks.com/.
4. Lock Picking 101. Retrieved September 30, 2005, from http://www.lockpicking101.com/.
5. Hampton, S. Secrets of Lock Picking. Fort Liberty. Retrieved October 5, 2005, from http://www.fortliberty.org/locks/secrets-of-lock-picking.shtml.
6. Tool, T. (1991) MIT Guide to Lock Picking. Lockpickshop.com. Retrieved September 30, 2005, from http://www.capricorn.org/~akira/home/lockpick/mitlg-a4.pdf
7. Ingersoll-Rand Company, Retrieved October 4, 2005, from http://www.irco.com/
8. Harris, T., and Brian, M., (1998). How Lock Picking Works. HowStuffWorks, Inc. Retrieved October 5, 2005, from http://www.howstuffworks.com/lock-picking.htm.