Holy moly nail

[cheetah1]

Just have to ask...

What is the nail on the left in the picture for?

Click

 

[Mikael_L]

2000 years ago, the Romans literally put troublesome Jewish youths in their place with these.

 

[Savanna]

We had some of those at my uncle's 50th birthday party in a competition, although they were "only" around 24cm. My cousin, who is an electrician, said they usually use them for these types of electric poles. Exactly what they nail, I never asked. =)

 

[Gråben]

Looks like old-fashioned brewing nail but I could be wrong!
The length seems to match though

 

[cheetah1]

So that's what comes up when you search for trådspik on Wikipedia.

 

[Donwoody]

at my job, we nail the finished outer walls with similar nails, through electric pipes that have been cast into the concrete floor (20cm) and then down into the section below

 

[Mats]

There are even heavier ones available. Look at those used to nail together Stocklador, for example