Best Euro Cylinder Lock on the market?

[Screwsloose]

Image the celebrations and high fives at Yale after the Lock Picking Lawyer—working on his bench, not in the field—described this euro cylinder as “a very tricky pick”.

Mere mortals aren’t going to pick that lock cylinder in the field.

Also, I’d be more concerned about a lock’s resistance to physical attacks than lock picking.

 

[JohnD]

Also, I’d be more concerned about a lock’s resistance to physical attacks than lock picking.

There should be a Standard for locks that resist burglar attacks.

Ooops

There is. BS3621

Too hard for Eurocylinders.

 

[crank39]

The idea was that cylinders should meet a level of security comparable to BS3621.

A 1* cylinder must meet the requirements of BS 3621:2017 and a minimum requirement for BS EN 1303:2015. Those standards cover tests against physical attack, key security, fire resistance, durability, plug extraction, and crucially, lock bumping.

A 3* cylinder must do all the above but also withstand an attack to the standards set out in PAS24

 

[crank39]

BS3621 means not a lot of you really want to get in, I've even unscrewed the handle and used a cobalt hole saw to cut straight through the wooden door and hardened case on a BS3621 mortice lock and just lifted the 5 levers up with a screwdriver

 

[Screwsloose]

I've even unscrewed the handle

I never understood why sashlock handles were quick and easy to unscrew.

It would be straightforward to use security screws—even if they merely added a little time to breaking in.

 

[Screwsloose]

There should be a Standard for locks that resist burglar attacks.

Regarding euro cylinders, it’s the recently revised Diamond 2024 standard:

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[aveatry]

I never understood why sashlock handles were quick and easy to unscrew.

It would be straightforward to use security screws—even if they merely added a little time to breaking in.

The screws are on the inside only

 

[crank39]

Lever handles for sashlocks are screwed from both sides

 

[aveatry]

Lever handles for sashlocks are screwed from both sides

Ah getting mixed up with the euro cylinder.
But then once you have unscrewed the handles all you will see are 2 holes in the door so you are at no advantage as to breaking in. Unlike when you expose a cheap euro cylinder.

 

[JohnD]

Lever handles for sashlocks are screwed from both sides

Though you can use sleeve nuts, with no external screwdriver slot, which are greatly preferable.

 

[crank39]

Yep but can you guarantee the through screws avoid the case of the sashlock? At least MPLs have cut outs or holes specifically for the handle screws

 

[JohnD]

Yes, all the sashlocks I've seen recently have two cutouts for the purpose.

Example

The oval shape accommodates small differences in rose size.

 

[crank39]

For a rose handle but maybe not a lever handle

 

[JohnD]

You mean lever on plate?

 

[JohnD]

The idea was that cylinders should meet a level of security comparable to BS3621.

Although the very few cylinder locks meeting BS3621 are particularly expensive, and have a great lump of protective armour on the outside.

Eurocylinders don't, and don't.