Master Lock No 410: Difference between revisions

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| lock_type = [[Padlock]], [[Cylinder]]
| lock_type = [[Padlock]], [[Cylinder]]
| lock_design = [[Pin tumbler]]
| lock_design = [[Pin tumbler]]
| years_produced =
| patent =
| related =
| spec_on      = true
| spec_comptype = [[Pin_tumbler |Pin-tumbler]]
| spec_comp    = 6
}}
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Revision as of 13:59, 26 December 2022

Master Lock No 410

Master Lock 410 LOTO
Master No 410.jpg
Name Master Lock 410 LOTO
Manufacturer Master Lock
Lock Type Padlock, Cylinder
Lock Design Pin tumbler
Specifications
# of Components 6
Component Type Pin-tumbler


The 410 LOTO is a plastic-body padlock made by Master Lock.[1] It is designed and marketed to electricians and maintenance workers who need to lock out and disable equipment while performing maintenance.

The 410 LOTO is notable as being one of few 6 pin locks manufactured by Master Lock. It has also achieved notoriety among locksport communities as a well-known practice lock for learning tension control and recognising counter-rotation while picking security pins.


Principles of operation

See Pin-tumbler (Principles of Operation)

The 410 LOTO is a 6-pin core containing 5 spools and 1 lightly serrated pin[2], in random positions. The keyway is physically restricted by the plastic body to rotate only clockwise, but the core is able to rotate counter-clockwise using a tension wrench underneath the body. The lock can be permanently damaged by rotating the core 180° clockwise, as this can drop the key pins out of the lock or into the lock body.[3]

The lock is available with two possible keyways. It is not usually possible to know which a lock will come with until it is opened.

The 410 LOTO uses a ball-bearing locking mechanism to detain the shackle, making it immune to the shackle bypass techniques common on older Master Lock padlocks.

Disassembly instructions

The 410 LOTO cannot be disassembled non-destructively. However, it is possible to take it apart relatively easily, while keeping it mostly intact. The plastic lock body can be split using a tool wedged down the shackle hole in some cases, or can be cut along the seam using a rotary tool to weaken the seal.[2]

Vulnerabilities

The 410 LOTO design prevents any shim bypass, either by core or by locking mechanism. However, the padlock is made of plastic and does not have a hardened shackle, and as such is vulnerable to many brute force or heat attacks. It is vulnerable to the following:

Gallery

See also

References