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Sargent & Greenleaf Group 1 Mechanical Safe Lock with Strike 3
Surface mounted deadbolt requires minimum door preparation. Overlapping strike design resists prying of the door and frame. Inside release knob unlocks the deadbolt at any time. Dogging switch can be used to prevent the combination from being scrambled from outside or to keep the door unlocked when desired. Included hardplate resists drilling through the door to compromise the lock. Hardened steel pins are incorporated in the locking bolt to resist cutting and sawing.Three wheel combination lock offers 1,000,000 different combinations. With Strike #3
Overlapping Strike Design Resists Prying of the Door and Frame; Inside Release Knob Unlocks the Deadbolt At Any Time; Hardened Steel Pins are Incorporated in the Locking Bolt to Resist Cutting and Sawing
Manufacturer Resources
Product Specs
- Catergory:
- Mechanical Locks
- Product Group:
- Safe Accessories
- Product Subgroup:
- Parts and Accessories
- Series:
- Group 1
- Subcategory:
- Safe Lock
- Product Type:
- Safe Lock
- Department:
- Safety
Sargent & Greenleaf 8555-103 – Frequently Asked Questions
1) How much door prep does the Sargent & Greenleaf Group 1 safe lock need to mount?
It's a surface mounted deadbolt, so it needs only minimum door preparation rather than a full mortise pocket cut into the safe door. The hardplate that comes with it mounts to resist drilling through the door at the lock, so plan the mounting location with that plate in mind.
2) Can someone get locked inside a safe or vault door using this Sargent & Greenleaf Group 1 lock?
There's an inside release knob that unlocks the deadbolt at any time, so the bolt can always be retracted from the secure side. That's the feature to confirm on any walk-in vault door application.
3) Does the Sargent & Greenleaf Group 1 mechanical safe lock come with a strike, or is that ordered separately?
The strike is included, and it's Strike #3 specifically. Sargent & Greenleaf strikes are not interchangeable between numbers, so if the existing installation was built around a different strike number, the bolt geometry is what to check before ordering this one.
4) Is this a Group 1 or a Group 2 safe lock, and does that matter for a high security container?
This one is a Group 1 lock. Group 1 is the higher manipulation resistance class of the two, and it's the classification typically called out where a container spec demands more than a standard commercial Group 2 dial lock. If the spec on the job says Group 1, this is the class of lock it's asking for.
5) How many combinations does a three wheel Sargent & Greenleaf mechanical safe lock have?
Three wheels give 1,000,000 possible combinations. That's a purely mechanical dial lock, no battery and no keypad, which is why it stays in service in vaults and safes where electronics aren't wanted.
6) What does the dogging switch on this Sargent & Greenleaf safe lock actually do?
Two jobs. It can hold the lock so the combination can't be scrambled from outside, meaning staff aren't re-dialing all day, or it can hold the door unlocked when you want free access during business hours. Useful anywhere the safe is opened repeatedly on a shift and then secured at close.
7) How does this safe lock resist prying and cutting attacks?
Three things work together. The strike overlaps, so the design resists prying of the door and frame rather than leaving a bolt edge exposed. Hardened steel pins run through the locking bolt to resist cutting and sawing. And the included hardplate sits between the outside of the door and the lock body to resist drilling.
8) Can this Sargent & Greenleaf lock replace an electronic safe lock on an existing safe?
It's a mechanical dial lock, so swapping from an electronic lock means the door prep changes: you lose the keypad opening and gain a dial spindle hole. Since this mounts on the surface and needs minimum door preparation, that conversion is usually more workable than going the other direction, but the bolt and strike location on the existing door has to line up with Strike #3.
How fast can I get the Sargent & Greenleaf 8555-103 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sargent & Greenleaf 8555-103 come with a warranty?
Absolutely. The Sargent & Greenleaf 8555-103 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sargent & Greenleaf 8555-103?
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