Sargent & Greenleaf S&G Model 6730-100 Mechanical Safe Lock Kit

Bought this to replace a existing dial lock that had warn out after 25 years. The original was a Sargent and Greenleaf combination lock so I replace it with this new one. Well made, very easy to work with and install, solid combination lock.Prior to ordering make sure the model will fit your safe. Go to the Sargent and Greenleaf page and follow the instructions to identify your present lock, so you can purchase the correct replacement unit.The kit comes complete with everything you need. The instructions are excellent. Make sure you read them completely before you start the replacement of your lock. Note the manufacturer recommends a professional. I completed my install/replacement on my own. I have never done it before, but with these directions there is no way to go wrong. Take your time and you will have your replacement installed quickly.Setting your combination is easy using the separate instructions.Well made, easy to install, fit perfectly.Would buy again and I do recommend.

Very good, sturdy lock. Easy to install. Easy to open.

The supplier is one of the big and highly reputable names in the locksmith industry. +1.The unit appeared new, however, it was definitely not an unopened "as shipped" product since the production date and lot number on the box (which was factory labeled for this product) did not match that on the lock.I received this product on 9/1/24, and the factory label on the lock indicated it was manufacturer in 7/24. The paint was barely dry on this thing - definitely new stock.I replaced a 28 year old LaGard electronic lock that was working perfectly on one of my ordnance lockers, however, the age of that unit made me want to swtich.The description is just plain wrong.First, the specification sheet mentions one 9V battery. Nope, this is an entirely mechanical lock with no battery.The description mentions this was tested against expert manipulation for 20 hours. Nope, at least not the industry standard testing. This is a group 2 lock. Manipulating ratings are:Group 2 - 15 minutes (by an expert, you are not going to be hit by this except in an Oceans 11 style job)Group 2M - 2 hours against expert manipulationGroup I - 20 hours against expert manipulationGroup IR - Same as group 1, but resistent to X-Ray analysis of the wheels. Reduced service life because wheel are some sort of plastic.The group 2 is the overwhelming most common safe lock, until you get into UL TL rated (TL15, TL30, etc.) safes that require a 2M. These are the kind of safes that generally cost over $10K and meet insurance industry requirements for jewelery stores.My install went easy, but had to reshape mounting holes on the dial ring because the mounting hole locations in the door were out of spec by 1/10 of an inch as there was more tolerance for the electronic lock mounting. This is NOT the fault of the lock.

Having now completed not one but two installations of this lock on different gun safes, I feel pretty qualified to give a review in case it might help someone out there. Similar to some other reviewers, I found the included instructions for setting a combination once the lock has been installed to be virtually worthless. Do a search for "S&G 6730 combination lock installation" (video, dated May 3. 2012) and follow the instructions you find. In fact, this is a great video to watch in general just to see what you are possibly getting into, if trying to make up your mind about attempting this yourself. Okay, now let's talk more about installation...In my particular case, I have fitted this lock to two different gun safes, both of which were purchased from TSC. The first safe was a Cannon model 756030 that came with a Securam electronic lock. While this lock has never given me any problems in the 5 years I've owned the safe, I have always worried about it. The installation of the S&G 6730 on this safe was about as straightforward as could be expected, since the electronic solenoid module inside the safe has the same "footprint" as the 6730 lock body. Literally just unbolt the old and bolt in the new (same screw thread). The electronic keypad is attached door by two screw studs that, after being removed, are exactly the right spacing and thread to mount the 6730 dial ring. After that, follow the instructions to cut the dial spindle (which is pretty straightforward), put the relocker plate back on the bolt body, and you are done. Took me all of 45 minutes, going slow and careful.The second safe I have installed this lock on was a Winchester TS-9-EFL. This particular safe came with an unidentified electronic lock, which may or may not be a LaGard (I've read that it is in some forums). In any case, after just over a year this lock decided to suddenly not work, in the form of half the numbers on the keypad not responding. I finally got it working again after removing the battery and figuring out how to fully discharge a capacitor (and, a lot of stress). At that point, I just left the safe unlocked and ordered this 6730 kit from Amazon. The installation on this safe, however, turned out to be nothing like the Cannon. On the Winchester the electronic solenoid module was a completely different footprint from the 6730 lock body, there were no existing holes on the door face for mounting the 6730 dial ring, and the location of the pass through hole for the wires (through which I wanted to put the dial spindle) wouldn't put the 6730 lock body in the right place to interface with the linkage inside the safe door. However, after studying things for a while, I finally ended up drilling and tapping 4 holes inside the door to mount the lock body, 2 holes on the outside of the door to mount the dial ring, used the existing wire pass through hole for the spindle, and fabricated a new metal piece that I bolted to the internal linkage to serve as the interface with the 6730 bolt. This took me about 4 hours to complete, including head-scratching time figuring it all out. In any case, this was a considerably more complex installation, certainly "possible" (at least for the person with the proper tools) but a lot more involved.So, trying to wrap this up...this S&G 6730 lock kit seems like totally the way to go, if like me you have had problems or just worry about an electronic lock. Just be prepared that there might be more or less work involved depending on what safe you are trying to install it on, and lastly, don't even try to use the included instructions for setting the combination.

Granted it did take a little bit of time to install, but part of that was having to drill and tap holes for the dial ring to be mounted. I did watch a youtube video of an install a few times as well and it was straightforward after that. Biggest thing is to try the combination at least three times before closing the door to test it.