I just started using keyed padlocks on me new little chicken coop this year. and this morning they were frozen was almost impossible to get the key in and took a long time and a lot of wiggling before I could open it. and I was worried I might break the key off inside the lock and then what?? I thought about going back in the house for a little torch lighter but after a bunch of wiggling frantically, and some prayer, because the chickens were crying to get out , finally, I got one open. So yes we got tons of rain the last couple of days and then tonight it went down to 30° and froze things - even my duck house door knob locks were very difficult to get the key in and turn which is unusual because I’ve had this duck house through five Winters already without trouble like that .. but if this is going to be a regular problem with padlocks over the winter I just can’t really use them I guess.. ? is there something else that’s just as safe but won’t freeze?