Lockwood 110 series

Lockwood's 110 series is a consumer-grade series of small brass-bodied pin-tumbler padlocks. They are marketed for use in low security applications, such as mailboxes and school lockers.

Features
110 series padlocks cannot be disassembled non-destructively. The hardened shackle is secured with spring-loaded locking lugs, which are vulnerable to shimming attacks. The 110/20 and 110/25 use only one locking lug, on the open side of the shackle.

The 110/20 and 110/25 contain only standard pins, while the 110/30 and above contain a mix of spool and standard pins. These pins are differ from the spools used in Lockwood's commercial rekeyable range, which are commonly referred to as Lockwood shallow spools.

Vulnerabilities
The 110 series of padlocks is vulnerable to the following:


 * Impressioning
 * Key bumping
 * Lockpicking
 * Padlock shimming