The Sold Secure silver-rated 8mm hardened steel chain is long enough to fit around the wheel and frame and is covered by a tough nylon sleeve.
There are also specially hardened bike chains which are the best option if you have to use non-standard things like lampposts to lock your bike to.
Another NGO, the Born Free Foundation has helped to construct so far nearly 200 predator-proof 'bomas', hardened wooden posts and chain-link fences, thus further strengthening the rapport between farmer and conservationist.
To saw a ship into pieces, a big chain with sharp, hardened cutting edges is moved like a saw over the metal.
The chain coupling consists of two hardened-steel sprockets, one on each shaft, with a nylon or metal roller chain wrapped around the closely aligned sprockets and connected at the ends.
The chain is made of squared links of hardened steel that is impossible to cut by hand, so that part of the lock is still sound.
That means stronger sea walls, natural barriers, hardened power grids, hardened water systems, hardened fuel supplies".
Hammers, wrenches, chains, and pretty much anything made of hardened metal can destroy a drill bit, and drill bits can be quite pricy.
No matter how hardened your IT security measures are, your users will always remain the weakest link in the security chain.
For the battle-hardened business traveller, budget hotel chains are synonymous with dreary decor, thin walls and the hum of the motorway beyond the window.
