What are these indoor door locks called?

[ProbablyDogNappersHunX]

Key is chubb branded but I need to find another one for another door which bizarrely has the holes drilled but no lock on it...

Deadbolt

I know them as door bolts.

e.g. www.amazon.co.uk/Yale-Locks-P2PM444PB-Security-Bolts/dp/B000TASY2C/ref=asc_df_B000TASY2C/?tag=googshopuk-21&linkCode=df0&hvadid=208288929966&hvpos=&hvnetw=g&hvrand=10204246517227526786&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9046221&hvtargid=pla-420321674093&psc=1&th=1&psc=1

Depends on the brand. Chubb was taken over

www.screwfix.com/p/yale-door-security-bolts-polished-brass-76mm-2-pack/74618?tc=KC6&ds_rl=1244072&gclid=Cj0KCQiAutyfBhCMARIsAMgcRJRvdLe8MymT8hRmtH6gleTIKCLGaMs-06FJgANNNNRjv2y2u9aDqGoaAi3CEALw_wcB&gclsrc=aw.ds

www.toolstation.com/rack-bolt/p64150?store=HU&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&mkwid=_dc&pcrid=&pkw=&pmt=&gclid=Cj0KCQiAutyfBhCMARIsAMgcRJS12MqNdiXUcLD9SimUYv-Wv7FSLTx6f6uT2Z7Zs_1aq8BFHKZNLrsaAkwMEALw_wcB&gclsrc=aw.ds

Thank you!