Yale KM3030-NP - KM Superior 1 Star Euro Cylinder Lock - 30/30 (70mm) / 30:10:30 - Nickel Finish - High Security

It is exactly what I was looking for - a good quality lock, the right size at a good price. I like to change all the locks when we move and I had been having trouble finding two - this being one of them.It looks good, has a very smooth operation and makes me feel that bit safer - what more could you want from a lock? Plus it comes with three keys.

Excellent value , arrived quickly . Great service, purchased to replace a faulty lock in our conservatory door.

Really easy to fit, remove one screw from inside the door frame, twist the key and remove the old unit. Reverse the process for the new lock. Took about 5 minutes including testing to make sure it was working ok. Measuring the lock dimensions to get the correct fitting unit was a pain – now wish I had temporarily taken the old lock out to get the measurements. Delivered earlier than expected!

Be certain that you order the correct size when you buy these, but do that and it's perfect. My uPVC lock gave up so I took it out [dead easy, see YouTube for details] measured the old lock, ordered the new one and it's a ten-minute job [and then you have a proper Yale lock instead of the random one liley fitted to your door].Measure it, buy it, fit it, forget it!

Worked and very easy to change over.

was better than expected. excellant

Good build quality and fitting straight forward.As with all Euro locks, it's best to remove your existing lock first and measure. There are two ways euro locks are measured. One was is from front to centre bolt hole and then centre bolt hole to the rear. The other way is from front to start of the center swivelling part (this part turns to engage lock) which has the bolt hole then add 1 cm (10mm) for the swilling part then measure end of swivelling part to the rear. Different manufacturers use different methods for measuring and then retailers may use a different method to the maufacturer!So 40/35 (mm) can be same as 35/10/30Does not come with new bolts so you'll have to re-use old bolt so don't damage the head when removing it. Some of the more expensive Yales come with two new bolts to cater for the two different lengths used on the euro lock doors.

I needed to change the locks on both doors of my house after an unauthorised person got hold of a set of keys. Couldn't believe just how easy it was to replace the old locks, making my house safe and secure once more.