Main problem is of definition of box latches. Strangely, these are wear items, vulnerable in nylon form, to UV. Yet, they are difficult to buy. Frankly, the photos available from all sellers are inadequate to show the difference in the form of the subtly different designs of latch. This is very much the case when working on a 14 inch laptop. I finally identified (I think) the latch I need, but on a web site of an OEM manufacturer, who apppears not to sell to retailers. That said, the door you provided to my Southampton address is excellent, and delivery was rapid.