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Tools and Training for Security Professionals™



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3-Wheel Lock, Front Reading Dial & Ring, Black & White, Pkg

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Do you need more than we currently have in stock? Contact sales at sales@mbausa.com or 1-888-622-5495 for availability.


Product Description

This Sargent & Greenleaf mechanical combination lock package includes a model 6730 lock body, a D300 dial, and a R211 dial ring.

The black and white dial is front reading with a spindle length to accommodate doors up to 3-1/2” thick.

The Model 6730 is the venerable standard of the industry for mechanical safe locks. This UL 768 Group 2 listed lock features a brass lever and three brass and aluminum combination wheels.

Includes spline key, change key and mounting hardware.

  • Patented S&G torque adjuster enhances security by maintaining proper wheel pack tension.
  • Integral relocker thwarts forced entry attacks.
  • Brass four-way drive cam allows mounting all four common mounting patterns (RH, LH, VU, or VD).
  • Metal wheels (brass and aluminum) for long, dependable life
  • Brass lever
  • Comes with change key
  • Can be used with a variety of S&G dials and dial rings.
  • Uses the industry standard footprint to match the mounting dimensions of most modern mechanical and electronic safe locks.


To watch an installation video for the SG6730-100, click here.
To download Installation Instructions for the SG6730-100, click here.



Product Videos

S&G 6730 Combination Lock Installation (30:37)
How to Properly Install and Set Up a Sargent & Greenleaf Model 6730 Combination Lock
  • S&G 6730 Combination Lock Installation
    How to Properly Install and Set Up a Sargent & Greenleaf Model...

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Product Reviews

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Previous | Showing reviews 7-9 of 15 | Next

  1. Install looks intimidating, but wasn't

    Posted by John on 6th Mar 2018

    I bought this to replace the electronic keypad on my Mesa safe--I kept finding myself worrying when the keypad would eventually fail. There are a lot of videos online showing how to install this 6730 lock and I didn't run into any problems. The hardest part is sawing off the brass rod to the proper length. The instructions are a little sparse, probably because they are geared towards locksmiths. For example, the combination is preset at 50, or 41. It doesn't say which and I was confused about how the combination could be a single digit. Again, the videos help a lot. The only concern I had was that the change key required a lot of force to turn and I was afraid of breaking it, but it did work and my new combination works flawlessly. This was the best price I could find by far, and it shipped very fast.

  2. Great price

    Posted by Sean Youngjohn on 12th Jul 2017

    Nobody else comes close in price, shipped fast also

  3. Great prompt service and delivery

    Posted by Unknown on 13th Apr 2017

    I am just an individual not a pro but after reading and looking it was easy to install the new lock on my safe and install a new combination. Works easy and no more problems, the old lock was sticky and troublesome.

Previous | Showing reviews 7-9 of 15 | Next

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