Hi Kevin
Corbin padlocks was a padlock made by Corbin. They made them in Canada during the war. On the UC Mk1 3 were needed. They were used to lock the tool box, the spare barrel bin and the crew stowage locker.
Im not sure how many you need but "back off"
till others get them. Ive been trying for some months now to get a hold of them. (Only joking of course)
Its hard to buy things when emails aren't returned.
For me I'd like to get them since my UC is nearing completion. ( I know, its not done till the exhaust system is installed)