US American high security pin in pin double single brass anti drill satin brass UL grade deadbolt lock cylinder

Master Key System

EOS secure are able to provide master key system for this cylinder. Meanwhile, if you have in-house locksmithes, you can assemble the master key system by using the accessories including master pins.
Learn more about our Master key system service.


EOS secure provides customization and design services to boost your business.

Learn more about customization.

Small order

EOS secure provides small MOQ on our existing models for start-up customers or mock up samples for projects.

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master key system and security cylinders

10 years of experience of master key system and security cylinders

high precision lock cylinders

Tsugami CNC Swiss-type automatic Lathe machine to guarantee the precision

lock cylinders R&D

Support your customize and Innovative design

lock cylinders quality control

Implement the strictest quality control

Deadbolt lockset cylinder, double cylinder and single cylinder with thumbturn are available.
Keys are with side pins to enlarge key combinations.
Maximum 5-in-1 function.
Standard 0.1 – 0.15mm gap between rotor and housing.
Suitable for doing master key system. Offering master pins (3 kinds).
Key blanks with mobile pins assembled already.
Standard using #206 key profile. Other key profiles are available.
Available for different finishes. Plastic key head. Nickel silver keys.
Optional different cams.

deadbolt lock cylinder

mul-t-lock cylindertelescopic pin lock cylinder

Material of housing and plugs


Material of keys

Silver nickel with plastic key head

Optional surface finishes

SN, PB, SB, BLK, and so on


Security locking system

Inner pin

5 numbers

Outer(external) pin

4 numbers

Construction key (3 in 1 function)


Master key system



Rim and mortise (RIMO)


Customized length

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