Graphical Construction Glossary >> Doors. >> Door Hardware >> Padlock
Not sure if this is just a European phenomenon. but it is the only place that I have seen it. So here we have the railing of a bridge across the Seine in Paris. The deal is that couples swear their undying love, sign the lock and throw the key into the river. Gotta be a brilliant marketing ploy by the lock industry. There would be thousands on this one bridge.
Pad locks can't do anything at all without another piece of gear. It could be a simple steel chain looped through two leaves of a steel gate or as we see here a Hasp and Staple fitting.
The pad-bolt uses a hasp and staple system with the hasp fixed to the bolt. The lock next to it has what is known as Shackle Protection. You can see that it would be a lot more difficult to get bolt cutters or a grinder into the shackle area to try to cut it.
Bolt cutters that are small enough to get into position when the lock is in use would probably have no chance in cutting the shackle anyway. They are always made out of toughened steel, and this particularly one is made out of a Boron Alloy. The body is brass.
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