Replacing door lock barrel: not sure about sizing

Mizu_Ger

Hi All, I want to replace the barrel on a PVC door with something more secure. I have one doubt about ordering a replacement: the current barrel is 90mm (45:45), but it protrudes beyond the door handle by about 5mm on the inside and outside (see pics below). I am thinking that a 80mm (40:40) sizing would be more approriate. Am I right in this thinking or am I missing something?

This barrel is the one that came with the door (almost 20yrs old). It's has no anti-snap or other security features that are available now, so I want to change it. Just want opinions on the best size. Thanks

The Continental Op

If you can get one (seems currently unavailable) https://www.screwfix.ie/p/smith-locke-6-pin-euro-cylinder-40-40-80mm-brass/6134x will cost you less than €3 so you can try it out 40-40-80mm.

But realistically this is more likely the cheapest one in stock if you want to test https://www.screwfix.ie/p/smith-locke-6-pin-euro-cylinder-40-40-80mm-brass/6134x

When buying new it can be a better deal to get a lock with the most keys as cutting is getting expensive.

Security wise I don't think many euro locks are very secure, most are pick able not that any potential intruder would bother.

Mizu_Ger

Thanks. I'll have a look at screwfix. I didn't think they could be that cheap, but I don't mind spending a bit more. I'll have a look through them, just want to ensure the size is appropriate. I'm presuming that the barrel shiuld not protrude from the handle.

The Continental Op

They should be flush as that makes them more difficult be far from impossible to snap.

astrofool

Decent black Friday deal (thumbturn or not):
https://www.amazon.ie/Yale-B-YS3-4040N-Anti-Snap-Cylinder-Security/dp/B06WLL9MZQ
https://www.amazon.ie/Yale-B-YS3-4040NT-Platinum-Cylinder-Security/dp/B06XY4DH8V

I have been able to buy them before with up to 12 keys but don't see that option right now.

Universal products can cut these as well (depending if their machine is working or if they need to get the UK to do it):

Yale Security Key - Universal Products

Mizu_Ger

Thanks. Those Amazon prices are actually very good.

I need to get a 30:30 thumbturn too, but can't find one with all the security features.

The Continental Op

https://www.boards.ie/discussion/comment/124016449#Comment_124016449

Thumb turn at that size would probably be considered and internal lock so no need for the security features.

DC999

I went to Crothers in Walkinstown, Dublin with the old lock to get a replacement. More expensive but knew it would fit. Means the door can't lock of course while it's out

Mizu_Ger

https://www.boards.ie/discussion/comment/124016725#Comment_124016725

Unfortunately there's no locksmith shops near me anymore. I think the nearest is in Dublin on Nth Frederick street. Might try them for the thumbturn.

Would fitting an oversized (40:40) thumbturn, with antisnap etc, in a 30:30 size door be unsecure?

The Continental Op

https://www.boards.ie/discussion/comment/124016805#Comment_124016805

The antisnap will be in a location in the door that makes it less effective. It isn't really antisnap. Its an area that snaps easily before the main weak point in the locks snaps.

DC999

https://www.boards.ie/discussion/comment/124016805#Comment_124016805

Crothers advised the barrel should be flush with the exterior of the door. To stop people putting a pliers on it and trying to break the barrel by force.

kadman

https://www.boards.ie/discussion/comment/124019822#Comment_124019822

Extended barrel locks as the type you have dont need a pliers to get in. Just need 2 hammers. Hang one over the lock barrel and hit the head of the hammer with the other hammer. Lock breaks off and the screw driver opens the lock. 15 seconds they say.

The Continental Op

If you ever want a recommendation check out the LockPickingLawyer. This one is really secure it took him 2 minutes to get open. Unless the CIA, FBI etc have a reason to break into your house no burglar is going to all the trouble.

https://www.youtube.com/watch?v=nOakyPgrpyw

Some good advice

https://www.youtube.com/watch?v=pHtQf7cFuXM

Easiest way to break in

https://www.youtube.com/watch?v=cQShSakZjvA

Mizu_Ger

Thanks all for the comments.

I have 2 external doors with barrels that extend past the door handle. I've got replacements for those easy enough, but need to sort out the odd-length, 60mm, thumbturn barrel.