Yes, I could get a disposable camera strobe for free, but if it only lasted for 1000 flashes then I would have to spend many hours pulling it out and replacing it. Since I would have to use a larger enclosure anyway, I turned my attention to the Hanimex. This appeared to be a high-quality strobe that would last a long time. Now for the enclosures. Materials are aluminum, polycarbonate, and other plastics.
Closure is generally with four stainless steel screws that are outside the O-ring seal.
This market is very specialized. Since I could not go and handle the enclosures, I made cardstock models of them to try to figure out which ones to order. Cardstock enclosure model. The BUD enclosure dimensions are drawn with Visio. The drawing is printed on cardstock and cut out with scissors.