Bedlam wrote:
What about the hidden shackle style locks?
http://www.masterlock.com/products/subcategory/HiddenShacklePadlocks
BTW: I also use the disc style lock. About every three years I have to flush them with WD40 to get the road grime out, but no other problems with them after 9 years.
American makes a hidden shackle and I believe both companies make the hasps for those locks. I like the American because you can swap out the cores if you want to rekey for any reason. Even with a battery powered or 120vac powered saw cutting these off is da## near impossible.