My Roundlock key only turns halfway

Check that the key is fully inserted. It should turn through 180 degrees to operate the lock; a key that is not fully seated may turn only 90 degrees.

Turn the key back and gently try to seat it fully. A slight gentle movement may help align the internal discs, but do not force the key.

If the key turns fully but the lock still does not release, the cause may be different. Contact us with the lock model and symptoms before trying more force or dismantling the mechanism.

Dealing with Dirty, Sticking or Jamming Locks: If a lock has already got dirt inside and is starting to get sticky to operate with the key, it is a good idea to flush it out soon, before the problem gets worse. GT85 or WD40 are good for this.

If it has already got beyond that and is jamming, squirting in a lot of GT85 or WD40 and inserting and removing the key many times (e.g. 30+ times) and trying (gently) to operate the key repeatedly will invariably free it up.

It really can take a lot of flushing and key movements to clear grit etc from inside the cylinder, but it does eventually work virtually every time.

The Squire Stronghold locks are precision engineered items and dirt is the enemy so it is much better to keep them clean to avoid problems like this, or if they start to show signs to clean them out as described sooner rather than later. If you use WD40 for this process, you should follow it with something with better lubricant properties as WD40 has almost no lubricating ability. We recommend products like a dry (Teflon) bicycle chain lube.