Sesamee K437 4 Dial Bottom Resettable Combination Brass Padlock with 2-1/4-Inch Hardened Steel Shackle and 10000 Potential Combinations

I bought this lock based on several online reviews. I have three of them, and one with the stainless shackle, that I accidentally ordered. I meant to get this marine grade one with the Brass shackle when I ordered that one. All four are fantastic. Changing combinations is very simple. One time I failed to push the "set" pin all the way in, but I quickly realized my mistake. Sometimes it can take a little more force than expected on one of my locks. Just know that it should go almost as far "In" as it can. The lock is very solid. I cannot stress this enough. They make Master Lock products feel loose and wobbly. I never thought they were until I started using one of these. I have seen the comparable looking model from ML. It is actually slightly different dimensions. These locks have a slight outward angle, whereas the ML is straight up and down. I admit I have seen the ML version of this lock functioning for 25+ years on a friends sailboat. It still works. But it is a pain to work the dials. I have read very few reviews that support ML as much. However I have seen several personal testaments that re-affirm the quality of Sesamee Locks. It may be hype, but handling the two makes me think otherwise. I have one observation, not really a negative. Due to my own ignorance, I thought my lock had a problem. I didn't realize that when the number wheels are spun in a decreasing direction, they stop at 0. I don't know why, they just do. Passing 9 in the increasing direction, it will go to 0 and continue increasing. I have adapted to setting the locks to all 0's when I'm done. I guess that was why they are made that way. Would I buy them again, absolutely! I'm sold on these over Master locks from now on. I read too many reviews about how the Master locks failed to remember their combo, or just plain stopped working. These things need better marketing, they are 10x the quality of anything comparable! I have been reformed. Gone is the day of the loose wobbly master lock. These just feel like quality. Updated: Still going strong. The one outside is still perfect. No issues with any yet. My master lock failed. I had to break it to get past it. I spray the Sesame with lube occasionally, because I like them spinning smooth.

The Sesamee and Master locks are virtually identical in exterior size and appearance. This lock (K436) has a hardened plated steel shackle, brass case. For more extreme outdoor exposure consider the Sesamee K0436 all-brass model with brass shackle otherwise identical. We have/use many of both lock types and prefer the harder-to-find Sesasmee than the widely distributed Master lock - good thing Amazon sells both. The the combo set pin on this lock is (smartly) inside the shackle hole, and is a stout flat sided pin. It is not on the outside case hole like the Master lock, the Master lock set key is a flat relatively thin metal key which feels flimsy to use - as if it just might break off not comforting. We do not use these in a high-vibration environment e.g. trucking so cannot comment on propensity for combo changes we have never had that problem. It is sure nice to set your own combos rather than remember a totally random manufacturer determined number sequence. There is a video on YouTube showing a locksmith fumbling with a demo/cut-away Sesamee lock and having trouble doing it. That is simply NOT the real-world case/our experience. The Sesamee’s actually set easier than the Masters. Also we do not use these locks (Master or Sesamee) in a high-vibration environment e.g. trucking so cannot comment on propensity for combo changes we have never had that problem. It is really nice to set your own combos to easily remembered numbers rather than remember a totally random manufacturer determined number sequence. The Sesamee has a nice feature where the combo wheels can be rolled back to zeros (they hit a stop in that direction) which is useful for folks operating the lock in dark low light situations. Can't do that with the Master lock. CCL (Corbin Cabinet Lock Company) was founded in 1882 in New Britain, CT is the originator of the Sesamee Brand 4-wheel combination lock design. The Sesamee lock is now made overseas (Taiwan) and the quality remains high. The Master lock is made in the US.

Of all the different combination locks I've owned, this one is a standout. The case is heavy brass and the shackle appears the same (though it may be brass-colored steel). The numerals on the dials are clearly written, the detents between for a fingernail are deep, the individual dials move smoothly and seem to stop with the number in correct position, not in between. The requirement of a "key" to set the combination, as opposed a keyless type, is no big deal; not many lock combinations are changed after being intially set. Its brass construction gives it a nautical look, which is appropriate, since it secures the lid of my dock box at the marina. The shackle is also ever-so-slightly smaller in diameter to another lock I've used so it doesn't bind in the opening of the dock box latch. I trust its weather resistance will live up to my expectations. It's made in Taiwan and looks to be as solidly built as many of their tools.

Excellent product

I looked everywhere for a combination lock with a shackle longer than 85mm. I got two of these, the shackle's inside diameter is about 105mm, so are perfect for what I need. Delivery was a week sooner than stated, I got a message that it was being sent the same day I ordered it. The locks look to be a very high-quality product and they feel quite heavy. Also noteworthy is the fact that these locks are suitable for vision impaired and blind people. First Amazon purchase, so far I'm very satisfied.

The shackle is 5/16" thick, which is too thick for a gym locker. The numbers on the four dials for the combination are 1/8" high, could be small for some peoples' vision. But this is a heavy duty lock so the shackle should be thick. The lock has a really solid heavy feel to it, it's well made, and beautifully made too. The combination dials stop at zero and have a definite thumb nail groove, the dials click into position for each number. So you can open the lock in the dark by zeroing the dials then counting the clicks to get to your combination. It's easy to put any four digit number combination into the lock. I'm pleased with the lock.

I have 4 of these now, love the combination feature. Less than the Master Lock ones but do the job well

These locks seem very sturdy and are easy to setup. The feature that stops the numbers from rolling back past 0 is great for entering the combination in the dark. Since I've only had them a short time I have yet to see how they'll hold up to the snow and rain.

Excellent product