There is almost an infinite number of padlocks models from antiques to moderns. This is only a sample of four used nowadays. If useful for any swapper, great. Rendered with Cycles. Regards.
The one in front is known as Insurance Lock. It is stronger (harder) than the others because it is very difficult to be cut by shears. Take care.
Superb as always. Yes, the three at the back will be very useful, though I've never seen one like the one in front.