Product review (4 stars): Doesn't fit but works. Measure!
I have had this key in use for my freezer for almost two years now although it's the wrong size, it still works. I'm afraid over time it will wear out my lock beings it's loose. I was researching trying to find the correct size, as it appears no one has measured the pentagon shape. I measure using a normal tape measure, just do what's called "burning an inch" which is for smaller measurements. This doesn't have to be precise but... the ruler matched up perfect to a 1/16th of an inch; it appears to be standard vs metric. So if people could measure for their reviews it could help many. The lock and key can be measured in a similar fashion. Look at the picture... My lock is exactly 3/16 measured from one flat side of the pentagon to the corner on the other side. This particular key model #842177 measures one quarter of an inch. The model number match option for was to no avail. I would have to move the freezer out to locate the entire number for this review and choose not to at this time. It's a Kenmore upright Model 19 (19cu/ft). I hope this helps.